◾️ Mini 4WD Used Aluminum Bearing Rollers Red Plastic Ring Lot ◾️ Some have had too much internal pressure released and are loose. Please secure the inside of the rollers with adhesive before use. ◾️ 19mm Aluminum Roller Red, 9 pieces ◾️ 19mm Aluminum Roller Silver, 1 piece ◾️ 19mm Plastic Ring Blue, 8 pieces ◾️ Returns and complaints are not accepted. Please purchase only if you understand and agree to these terms.