The science of hockey has taught us that performance starts at the wheels. Kemistry Cyclonium Soft Inline Roller Hockey Wheels are built to generate maximum speed and power, while providing elite-level control and grip. These premier wheels are designed in California and made in the USA with exacting quality standards seldom seen elsewhere. This translates to high-level performance on your skates. Choose your wheel in size 72mm, 76mm or 80mm.