Description: Features: brand new and high quality 1. Durable and practical. 2. Designed specifically for linear motion. 3. 2GT Pulley and 2GT Belt are used together, very convenient to use.(2GT Belt is not included) 4. 40 teeth contact with the belt, that minimizes the chance of the belt slipping. Please make sure what is type of your choice, check it again when you pay it(T: teeth; W: width; B: bore) Specifications: Item name: 2GT Timing Pulley Material: Aluminum Color: Silver Type: 1 : 2GT-6mm 40T-5B; 2 : 2GT-6mm 40T-6.35B; 3 : 2GT-6mm 40T-8B (Optional) Bore Diameter: ()5mm/0.20"; ()6.35mm/0.25"; ()8mm/0.31" (Optional) Suitable for: 2GT 6mm width timing belt Teeth: 40 Quantity: 1 PC (other accessories 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 Timing Pulley (No retail package)