3D Printer Accessories 2020 BX24 Wheel Pulley White (5x21.5x7mm) support to 2020 aluminum profile

Specifications:

• Type: R type plastic bearing
• Model Size: 5x21.5x7mm
• Inside diameter: 5mm
• Onside diameter: 21.5mm
• Height: 7mm
• Material: Polyoxymethylene POM