A small nose wheel chock to maximize stopping ability for 4.00-5 and 5.00-5 tire. Height = 1.5 inch, width = 4.5 inches, total weight = 0.34 lb (156 grams). Designed to have maximum stopping power and the ability to rotate with the nose wheel. In high wind conditions the aircraft can be moved by the wind, especially when the wind is perpendicular to the rudder. This can result in some motion and rotation of the nose wheel. This chock will rotate with the nose wheel and continue to secure the aircaft and the chocks will not be moved by the wind. This is especially advantageous for a free castoring nose wheel. 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.