Roll Line GREASE artistic dance wheels, 63mm, 97A, set of 8

The Grease wheels are recommended for expert skating at professional level.
These wheels are composed of a 48mm wheel-hub made of stiff shockproof material and of polether polyurethane covering for a high-quality casting.
Available in a 63-mm diameter with a 30-mm tread in the following varieties of hardness:
92A - for extra-slippery surfaces
95A - for slippery surfaces
97A - for regular surfaces