These suction cups replace JL Safety EZ Pass-Mate suction cups. Also the ones that come with your SunPass, SunPass Pro, Uni standard and Uni black,Pike Pass, K-Tag and Express Pass toll pass or transponder as shown in the picture. Also compatible with all Cobra, Escort and Beltronics Radar Detector mounting brackets suction cups. Industrial grade with patented ring that diverts sun ray beam that shows to damage your transponder or dashboard when sun rays are focused into a point. Simply pull out the old ones and insert the new ones and you are good to go. 12 pack, toll pass and radar not included. Made in USA Specifications: Size : Small Diameter at rest: 1 1/8" Diameter in use: 1 1/4" (pressed) Head O.D. : 0.395" Neck O.D. : 0.254" Neck Length : 0.068" Color : Clear Material : Ultraviolet Resistance (UV Resistance) Polyvinyl Chloride (PVC)