Features:_x000D_ _x000D_ Spring loaded design: allow gates to open and close freely by automatically adjusting height on uneven ground while eliminating gate sag. _x000D_ Heavy duty caster: the wheel has a maximum load capacity of 110lbs and can also withstand exposure to chemicals and solvents. _x000D_ Shock absorbtion: easy to move and roll, make opening and closing gate easy. _x000D_ Made of premium nylon material and metal construction, sturdy and durable. _x000D_ With a brake, you can hold the gate at anywhere, safe and convenient to use. _x000D_ Heavy duty universal mounting plate with 4 holes to easily attach to wooden gates or along horizontal or vertical rails of a tubular farm gate. _x000D_ _x000D_ Specification:_x000D_ Material: Nylon + Metal_x000D_ Weight: Approx.1542g/ 54.4oz_x000D_ Caster Dia.: 75mm/ 3in_x000D_ Load capacity: Maximum 50kg/ 110lbs_x000D_ _x000D_ Package List:_x000D_ 1 * Gate Wheel_x000D_ _x000D_ Note:_x000D_ Please allow slight error due to manual measurement. Thanks for your understanding._x000D_ _x000D_ Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.