Radar Energy 57 Features:

Category: Outdoor, Street, Parks Performance
Skating Style: Outdoor Trail Skating
Size: 31 mm x 57 mm
Hardness: 78A
Hub: Micro
Urethane/Colors: Aqua (NEW!), Red, Clear Blue, Yellow, Pink (NEW!), Orange (NEW!), and Purple (NEW!)
Sold in packs of 8wheels