Silicone Skin for SunPass Pro and SunPass Portable (Florida), UNI Pass by E-Pass, and Rectangular EZ Pass with Suction Cups

Quick take

This silicone sleeve wraps a compatible rectangular toll transponder in a neutral black look and includes replacement black suction cups. It is best for drivers who want a cleaner, more discreet windshield setup and a bit of extra protection, with an important caveat: it only fits specific rectangular models that are designed to use suction cups out of the box.

Pros and cons

Pros

  • Flexible silicone cover for a more discreet black appearance
  • Designed for select 4.3 x 1.4 inch rectangular transponders
  • Includes a pair of black suction cups to replace clear cups
  • Easy, straightforward install for a simple windshield accessory upgrade

Cons

  • Does not fit transponders with interlocking-strip designs or other shapes
  • Fit depends on the exact compatible model and dimensions, so checking photos is important

What buyers think

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Buyer feedback centers on appearance and day-to-day usability. Many reviews highlight that the sleeve changes the look from a brighter or more noticeable transponder to a darker, more blended-in presence on the windshield. Several also mention a straightforward installation process and that the overall size and functionality feel unchanged. A recurring theme is that the included suction cups can hold up well in higher temperatures and normal driving conditions, with buyers appreciating the upgraded, cleaner look compared to using the transponder in its original presentation. Buyer-review evidence is limited to these general themes, but the pattern consistently points to “discreet look” and “easy to use” as the main strengths.

What this silicone skin actually does

This is a silicone sleeve meant to cover specific rectangular toll transponders that mount to the windshield using suction cups. The goal is primarily cosmetic and protective: it wraps the transponder in black so it blends better, and it provides a soft outer layer that can help reduce minor scuffs from handling and mounting.

Compatibility, sizes, and the one thing to double-check

It only fits rectangular transponders (4.3 x 1.4 inches) that come with suction cups out of the box. It is intended for:

  • SunPass Pro
  • SunPass Portable (Florida)
  • UNI Pass by E-Pass
  • Rectangular EZ Pass with suction cups

Do not buy this if your transponder has interlocking strips that sit flat on the back side, such as the newer rectangular EZ Pass version that uses interlocking strips. For other shapes or different mounting designs, you will need a different cover made for that exact style.

Pros and cons for your specific use case

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When it is a good match

  • You want a more discreet black look for a compatible rectangular transponder
  • You are replacing clear suction cups with black ones (the sleeve package includes black cups)
  • You prefer a flexible sleeve that stays in place during normal driving

When you should skip it

  • Your transponder is not one of the compatible rectangular 4.3 x 1.4 inch, suction-cup style models
  • Your transponder uses an interlocking-strip back design (this sleeve is explicitly not for that style)

Ease of installation

Reviews commonly describe the install as easy. The product is a one-piece silicone skin plus suction cups, so there is no complex setup, pairing, or electronics involved. Your main “work” is ensuring the sleeve fits correctly around your specific transponder body and mounting it with the included black cups.

How it compares to skipping the sleeve

If you leave your transponder unwrapped, you usually get the simplest look, but it can be more visually noticeable on the windshield. A silicone skin is a low-effort way to reduce that visibility, while also adding a soft outer layer. The tradeoff is compatibility. If you pick the wrong model or you have a transponder with a different back design, it simply will not fit.

Price and availability

It is positioned as an affordable accessory option, typically much cheaper than replacing the transponder itself. Availability is shown as in stock, and you can check the latest price here: Buy on Amazon.

Final verdict: is the silicone skin worth it?

Yes, it is worth considering if you own a compatible SunPass Pro/Portable, UNI Pass by E-Pass, or rectangular EZ Pass (suction-cup style) transponder and want a discreet black look. If you care about matching mounting and fit, the included black suction cups and the silicone sleeve format are straightforward upgrades. The key buying caveat is fit, because this option does not work for interlocking-strip EZ Pass designs or other non-rectangular transponder styles.

FAQ

Will this fit an interlocking-strip EZ Pass transponder?

No. This sleeve is not intended for transponders with interlocking strips that are flat on the back side. Choose a cover specifically made for that interlocking-strip design.

What transponders does the silicone skin work with?

It is designed for rectangular suction-cup-style transponders, including SunPass Pro, SunPass Portable (Florida), UNI Pass by E-Pass, and the rectangular EZ Pass with suction cups.

Are the suction cups included black?

Yes. The package includes a pair of black suction cups, meant to replace the clear suction cups that may have come with your transponder.

Is the installation complicated?

Most buyers describe the installation as easy since it is a simple sleeve and suction-cup setup, not an electronics replacement.

Will the cover affect how the transponder works?

The sleeve is made to keep the transponder functional while changing its appearance. The overall intent is to preserve normal use, but you should still ensure correct fit with your exact transponder model.

Specifications

Product TitleSilicone Skin for SunPass Pro and SunPass Portable (Florida), UNI Pass by E-Pass, and Rectangular EZ Pass with Suction Cups. Wraps Your Transponder for a Discreet Look. Includes Black Suction Cups
CategoryAutomotive > Interior Accessories > Anti-Theft > Accessories
Item Weight0.634 ounces
Package Dimensions7.2 x 3.66 x 1.14 inches
BrandIoT Slash
PriceUSD 11.99
Rating4.7/5 from 483 Amazon ratings
Best Sellers Rank#26,727 in Automotive ( See Top 100 in Automotive ) #34 in Antitheft Accessories

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