Flat Nylon Ball Bearing - 20mm Black Plastic Tire for sliding doors & windows

Combined Black plastic tire with a 20mm Outer diameter ball bearing.

• Plastic pulley Tire combined with a steel ball bearing
• Door & Window Rollers
• Standard: Metric
• Size: M6x20x6mm
• Length of Thread : 8mm
• Length : 9mm
• Width : 6mm
• Quantity : 1 Bearing