Features: 100% brand new and high quality. Durable and flexible. Circular arc tooth profile. Tooth space is small. Suitable for straight linear motion. GT2 system is an extension of the HTD system with greater load carrying capacity. Specifications: Material: Neoprene Rubber Color: Black Shape: Closed Loop GT2 pitch: 2mm Width : 6mm Length: 200mm / 280mm / 400mm / 610mm / 852mm (Optional) Quantity: 1 PC (other accessories demo in the picture is not included) Note: 1.Transition: 1cm=10mm=0.39inch 2.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package includes: 1 X GT2 Timing Belt (No retail package)