The EZ Pass – FlexPort holder is made from black thick and durable plastic to withstand high heat without warping or melting. It fits all EZ Pass models including the EZPass Flex with the HOV switch. It uses dual suction cup for stability when sliding the HOV switch. 3M Dual lock strips comes already attached in the correct location to match and mate with your transponder dual lock strips that are factory installed. It is perfectly sized to hide behind your mirror and not block your view. It is easy to attach it to windshield, and remove it when needed by sliding a small card like a business card or credit card under both suction cups tabs that are easily accessible and conveniently located below holder. Comes with Lifetime Warranty. Made in USA. Patent Pending.