Radar Halo Roller Skate Wheels 4pk 59/38mm 101a Black Achieve world class edging without sacrificing grip. The shockingly lightweight Radar Halo features innovative signature H-shaped hub. The inner and outer edges of the hub are oversized, which reduces the amount of Urethane on the edges of the wheel. This makes it easy to perform stops and offers excellent response. The middle of the hub has room for more Urethane, which offers grip, increases control, and improves ride. The Halo is sold in packs of four wheels. SPECS Category: Indoor performance Skating style: Derby 59mm x 38mm 101a Set of 4...