Durable and practical minimizes the chance of the belt slipping

 Material:Aluminum ; 

Color:Silver Flange: 

Tooth number: 30 Tooth 

pitch: 2mm/0.07"

Diameter of Bore:6.35mm

width of Tooth: 6.5mm/0.25" Height:18mm/0.71" 

Diameter of Pulley:45mm/1.77" 

Package include:1 x 30 Teeth GT2 Aluminum Pulleys 6.35mm Bore 2 x setscrews 1 x Allen Key 

Note:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is /- 1-3 cm.