CONDOR SC1500 and Universal Etrack Adapter Combo - Motorcycle Wheel Chocks Mfg in the USA. The Condor chock and universal adapter quickly attaches and detaches to horizontal E Track on any trailer platform, whether the E Track is above the floor, flush mounted, or recessed. The chock and adapter bracket are steel and powder coated for durability. Boomerang Stabilizer bar included. Can be adjusted side-to-side between 26in and 46in wide. The etrack plate measures 20in long x 11in wide. Capable of accommodating the front or rear wheel between 14in - 22in diameter / 80 - 220mm wide. Supports up to 3,000 lbs. Weighs 58 lbs. and ships in two packages.