A small main wheel chock to maximize stopping ability for 6.00-6 tire. Height = 1.59 inch, width = 5.0 inches, total weight = 0.35 lb (160 grams). Designed to have maximum stopping power. In high wind conditions the aircraft can be moved by the wind, especially when the wind is perpendicular to the rudder. These chocks are design to prevent motion and are attached together with a snap clamp to secure the chocks in place. To release the rope from the clamp, pull the rope handle upwards. This price is for the full chock assembly and includes both the forward and aft chock, rope, fully assembled and everything that is needed. N-number engraving. Material is UV resistant plastic. Internal spring is corrosion resistant. There is a left and right hand side so that the snap clamp is oriented outwards from the aircraft for access.