PowerDyne Rival Plates Aluminum with Trucks 8mm Axle - Powerful, durable, and responsive, the all-new Rival from PowerDyne has been engineered from start to finish by skaters who know what a plate needs to perform. The Rival is built from extruded aircraft aluminum with an exclusive solid support beam that offers unmatched durability and rigidity for the Reactor-inspired platform. Every corner and angle of the Rival has been analyzed, stress-tested, and refined to reduce weight, increase strength, and improve feel. The attention to detail doesn"t stop there as the Rival comes with solid 7075 aluminum kingpins and high rebound urethane cushions for the instant response found in plates that are twice the price of the Rival. Lighter and more powerful than any other plate in its class, the Rival has no equal. - MAKE SURE YOU ORDER THE PLATE SIZE THAT MATCHES YOUR BOOT SIZE!! - Plate Size 2 = Boot Size 2 - 2.5; Plate Size 3 = Boot Size 3 - 3.5; Plate Size 4 = Boot Size 4 - 4.5; Plate Size 5 = Boot Size 5 - 5.5; Plate Size 6 = Boot Size 6 - 6.5; Plate Size 7 = Boot Size 7 - 7.5; Plate Size 8 = Boot Size 8 - 8.5; Plate Size 9 = Boot Size 9 - 9.5; Plate Size 10 = Boot Size 10 - 10.5; Plate Size 11 = Boot Size 11 - 11.5; Plate Size 12 = Boot Size 12 - 13; Size 13 = Boot Size 13. - These plates have 8mm Axles ONLY. Different manufacturers have different sizing from time to time and the sizing specifications on this plate may require adjustment to fit your specific skate brand. Please ask if you have any questions before placing your order because we are not responsible if you purchase the wrong plate size for your skates. Mounting hardware kit sold separately.