Caliber Products Edge Glides 2.0 - Three Piece Set 13391Increased size allows for more versatility Integrated traction knobs provide grip for both tires and foot traffic Cut lines provide clear edges when trimming to fit Hinge and pin design eliminates stainless hinge to reduce assembly time Innovative design provides smooth transition from ground to trailer or ramp Made from high impact plastic (HDPE) that is guranteed not to crack, chip, break or wear out Dimensions: 24in. W x 9in. L x 1. 18in. H