Durable for all-purpose use and any type of skate, HYDROPONIC skateboard trucks feature a lightweight, heat-treated aluminum alloy for strength, durability, and a polished feel for the highest quality and durability available. 90A super high rebound bushings to guarantee perfect flow in turns. Hydroponic Skate Truck Size: 133 mm (5,25 inches) For decks sized 7,5 and up Iron Baseplate Set of 2 trucks