EXCELLO GLOBAL PRODUCTS Swinging Sign Letters: Includes 792 Four inch Letters, Symbols, and Numbers for 24"x36" Swinging Letter Board Sign. Double Sided with Black & Red Printing on Flexible White Plastic Panels.

Why I picked up this letter set

I maintain a 24x36 swinging sidewalk sign outside our building, and the stock letter kit that came with the board always left me short on common characters. I picked up the Excello letter set to increase my inventory and to freshen up messages that had started to look tired. After months of use—swapping messages several times a week in sun, rain, and breezy afternoons—I’ve got a solid feel for how this set performs day to day.

Setup and fit

Right out of the box, these slotted panels slid into my 24x36 swinging board tracks cleanly. The tiles are 4.375 inches tall with characters printed at about 3.75 inches, which fits the groove spacing on standard swinging signboards. There’s enough flex to bow them slightly when inserting, but not so much that they feel flimsy. Once seated, they sit flush and even along the line.

On a practical note: the tiles stayed put in the wind. My board lives out near the curb and moves in a breeze. Even on gusty days the characters didn’t pop out. The fit-to-track friction and the slight stiffness of the plastic do their job.

Readability and color options

Visibility is the reason you buy a letter kit, and this one earns its keep. The white tile with high-contrast printing is easy to read from a typical parking-lot or sidewalk distance. As a rule of thumb, 3.75-inch characters are most comfortable to read at roughly 30–40 feet. That makes them ideal for storefront sidewalks, church grounds, or school entry areas, but they’re not meant for highway-speed viewing.

Every tile is double-sided—black on one side, red on the other. That sounds simple, but it’s more useful than it appears. I use black for the main message and flip a few characters to red for emphasis, dates, or short callouts like “SALE” or “TODAY.” The red is bold enough to catch attention, while the black maintains overall legibility. It’s a smart, lightweight way to get two visual styles without doubling your inventory.

One caveat: because each physical tile is double-sided, you can’t show the same tile in both colors at once. If you want both a black and a red “A” in the same message, you’ll rely on your duplicates. In practice that’s fine for short emphasis, but heavy color mixing will test your inventory.

Build quality and durability

The tiles are cut from flexible white plastic. They’ve avoided cracking and chipping despite frequent handling, and they haven’t curled at the edges. The material has enough memory to spring back after being slightly bent to insert into the tracks.

Sun exposure is always the stress test. After a season outdoors, the black side remains crisp, and the red side shows a bit more change. I noticed slight fading on the red after sustained full-sun weeks. It’s not dramatic, but it’s visible when you compare a frequently used red tile to a seldom-used one. The black printing holds up better. If your board bakes in direct sunlight all day, plan to rotate tiles or lean more on the black side for longevity. A periodic wipe with a mild cleaner keeps the white background clean without smearing the print.

Character selection and counts

Inventory is generous for a single kit: 396 double-sided tiles for a total of 792 printed characters. For daily use, that’s plenty for straightforward messages, hours, short quotes, and price points.

The constraint shows up with longer lines or mirrored messages on both sides of the sign. Common letters (A, E, S, T, R, O), double digits (e.g., “2025”), and repeats in proper nouns can drain your supply faster than you expect. I ran short of E’s and S’s when I mirrored a longer message across both faces. If you frequently write multi-line messages or need identical text on front and back, a second set turns out to be less a luxury and more a time-saver.

As for symbols, there’s a useful spread (numbers, currency, punctuation) for everyday signage. I would like a more robust punctuation set—most signage punctuation is covered, but a dedicated exclamation mark would have been welcome. You can force a workaround with an I and a period, but it looks clunky and eats vertical space. If you lean heavily on punctuation for branding or playful messaging, plan accordingly.

Storage and workflow

The cardboard storage box is better than I expected. The organizing tabs help me grab letters quickly, and the tiles are grouped in a sensible way. For a weather-protected backroom, the stock box is fine. If your storage area is damp or you’re hard on packaging, consider reinforcing the tab seams with packing tape or migrating to a plastic bin with dividers. I color-code a handful of key dividers (numbers, vowels, and punctuation) to speed up changes.

Workflow-wise, the smooth tile edges make it easy to slide letters in and nudge spacing without snagging. The printed alignment is consistent, so lines look balanced even when you mix in numbers and symbols.

Compatibility caveats

This set is intended for standard 24x36 swinging letter board signs. It is not a fit for boards that use larger 5-inch letter sets, and it won’t work with marquee or Signicade-style signs that require clear 4-inch on 5-inch flex letters. Before you buy, check your sign’s track type and letter specification. If your current letters are on clear panels or measure five inches tall, this isn’t the right set.

Tips for getting the most from the kit

• Plan your message on paper first. Count high-demand letters to avoid mid-setup surprises.
• Mirror messages across both sides only when necessary; otherwise, vary lines to conserve critical letters.
• Use black for most of the copy and reserve red for emphasis to extend the life of the red print.
• Rotate tiles periodically so the same characters aren’t always in the sun.
• Keep a small microfiber cloth in the storage box to wipe dust or pollen off the tracks and tiles during changes.
• If your sign location is extremely sunny, consider a UV-protectant cleaner for the board surface and store tiles away from the window when not in use.

What could be better

• Punctuation depth: a dedicated exclamation mark and a couple of extra common symbols would reduce workarounds.
• Sun resilience on red: the red print would benefit from an upgrade in UV stability. It’s acceptable now, but high-sun environments will notice the fade first on red.
• Storage durability: the included box is practical, but a plastic organizer would better match the longevity of the tiles themselves.

None of these are deal-breakers, but they’re worth knowing before you depend on the set for heavy-duty, daily messaging.

The bottom line

The Excello letter set has done exactly what I needed it to do: make messages clearer, faster to assemble, and more eye-catching, without the constant frustration of running out of letters mid-install. The double-sided black/red printing gives me flexibility, the tiles fit securely and resist windy pop-outs, and the plastic has stood up to frequent handling without cracking. On the downside, red fades sooner than black in full sun, punctuation options could be more complete, and the included storage box is more “good starter” than “long-term solution.”

Recommendation: I recommend this set for anyone using a standard 24x36 swinging sign who needs a reliable, high-contrast letter kit with enough depth for everyday messages. It’s especially good for storefronts, churches, schools, and small venues that change signs often and want the option to emphasize lines in red. If you plan to mirror long messages on both sides or your site sits in intense all-day sun, budget for a second set and consider rotating tiles to extend their life.