2GT System is an extension of the system with greater load carrying capacity.Circular arc Tooth Tooth Space is Small, Suitable for Straight Line Driving.The timing belt is made of premium rubber, more durable and flexible.20 Teeth contact with the belt, that minimizes the of the belt slipping. It Gives Better Smoothness and Accuracy of Positioning.Widely used in 3D printer, CNC, milling machine, gear forming machine, drilling machine, CNC machine tool lathe, hobbing machine or other mechanical transmission occasions.Colour:blackMaterial:PUPackage Contents:10x GT2-6 timing beltOnly the above package content, other products are not included.Note: Light reflection 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 +/- 1-3cm.