5PCS Creality 3D Black 2GT-20 Teeth Aluminum Timing Pulley Wheel 5mm Inner For Ender-3 3D Printer

Support  GT2 synchronous belt or 2GT timing belt

Teeth: 20

Material: Aluminum

Inner hole diameter: 5 mm

Length : 18.5mm 

Step with 2 pcs M3 screw holes

Higher stability than metal gear.  Also Suitable to other 3D Printers

Package included:

5x Creality 3D® 2GT-20 Teeth Timing Pulley