... of the two-wheel design makes it easier to apply force to the heel brake.SMOOTH, CHATTER-FREE RIDE: ... for longer and in more comfort. Specifications: Carrrying Capacity: 150kgs Size: 38, 39, 40, 41, 42, 43, 44, 45 ... +MG materialPedestal: High intension aluminum+MG material.Carrrying Capacity: 150kgs.Size: 38, 39, 40, 41, 42, 43, 44, 45. ... .W./N.W.:11/9kgs the newest 38 to 45 size LAND ROLLER SKATE