Toll-Tag Covers are specially designed holders for the transponders used by motorists or truckers to drive through tolls without stopping. Chicago Bears licensed covers are designed to specifically meet ALL Federal Standards for toll signals to be read right thru the transponder. The plastic cover measures 4"x 4.5" and works with transponders for gated communities, access points and toll roads such as E-Z Pass, I-Pass, and Smart Tag. Patented product made in the USA.