Slip-fit that tightly and gently holds your transponder in place Made from metal to handle extreme temperatures. Will never melt, break, or deform Industrial grade suction cup that holds through the hot and cold conditions Easily install and remove your transponder when needed. No adhesive needed. unlike other holders, it will not spin, rattle, discolor, deform, or bend This toll pass holder is designed to last forever. Perfect for EZ Pass holder, I Pass holder, NC Quickpass holder, FasTrak holder (not skinny models), Sunpass and Sunpass Pro holder, and all the ones shown in the photos. It is is simply unbreakable. It is made from metal that will not melt or break or discolor in the heat, and engineered in a way it will not interfere with the antenna signal reception and emission. It has an industrial grade suction cup that is patented to diffuse sun light and allows you to easily attach it to windshield, and remove it when needed by pulling on the suction cup tab that is easily accessible and conveniently located below toll pass. Easy to attach and remove, yet will never fall under any weather condition. Your toll pass is gently held so it does not rattle or spin or fall. It will fit only the transponders shown in pictures. Make sure to view all the photos. HOLDER ONLY, TRANSPONDER NOT INCLUDED. Lifetime Warranty. Made in USA.