The Roller Derby Axis Magnesium Plate was engineered for high-end quickness and agility. Pro Set true 45-degree aluminum trucks to feel the precise action immediately. The trucks have fixed pivot arms that rest in brass cups and the toe stop housing features a set screw moved very far forward for the utmost security. True dimensional 8mm axles. Kingpins feature a micro-adjustable lock nut for precision fine-tuning of the Power Pour Vectra Pro urethane cushions available in three hardnesses: 81A, 85A, and 90A. Package includes a plate adjustment tool. Does NOT include Mounting Hardware and Axle Nuts Baseplate: Magnesium Alloy Mirratec Onyx Finish Trucks: 8mm Threaded Axles Fixed Pivot Brass Pivot Cups Kingpins: 45 Degree Action Micro-adjustable Settings Cushions: Power Pour-Vectra Pro Urethane (85A and 90A included in box) Toe Stop Housing: 5/8" Adjustable 3/16" Hex Set Screw Weight (Assembled Size 6.50): 427g Manufacturer Warranty: 3-month warranty on all products. Contact RDE directly at 217-324-3961. If purchasing a boot and plate, add plate mounting here.