Chicago Men's Classic Quad Roller Skates Black Classic Rink Skate, Size 13 - Walmart.com
608-2RS Skateboard, Inline Roller Skate, Scooter 8 Bearings Blue Rubbe – Motion and Rotation LLC.
Jaboco super light quad frames— with bearings and wheels – ghskates
NTN NSK Koyo Fast Speed Bearing 6082RS for Skating Shoes 608zz Ball Bearing for Roller Skates - China Bearing, Deep Groove Ball Bearings | Made-in-China.com