Model Number: KW101--5757 Brand Name: KINGRUBBER Key Specifications/Special Features: Rubber wheel chocks are wedges of sturdy material placed behind a vehicle's wheels to prevent accidental movementChocks are placed for safety in addition to setting the brakesThe bottom surface is sometimes coated in rubber to enhance grip with the groundFor ease of removal, a rope may be tied to the chock or a set of two chocksOne edge of the wedge has a concave profile to contour to the wheel and increase the force necessary to overrun the chock