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

Specifications:Support  GT2 synchronous belt or 2GT timing belt Teeth: 20Material: AluminumInner hole diameter: 5 mmLength : 18.5mm Step with 2 pcs M3 screw holes Higher stability than metal gear.  Also Suitable to other 3D PrintersPackage included:1x Creality 3D® 2GT-20 Teeth Timing Pulley
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$9.47

Specifications: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:

1x Creality 3D® 2GT-20 Teeth Timing Pulley