Calorbot 5M GT2 Timing Belt 6mm Width + 4pcs 20 Teeth 5mm Bore Belt Pulley Wheel + 4pcs Idler + 4pcs Tensioner Spring Torsion + 2pcs Gear Clamp Mount Block with Allen Wrench for 3D Printer RepRap

Calorbot 5M GT2 Timing Belt 6mm Width + 4pcs 20 Teeth 5mm Bore Belt Pulley Wheel + 4pcs Idler + 4pcs Tensioner Spring Torsion + 2pcs Gear Clamp Mount Block with Allen Wrench for 3D Printer RepRap

• Timing belt: The timing belt is made of premium rubber, durable and flexible. It's designed specifically for linear motion, high positioning accuracy. Round tooth profile guarantees that the belt tooth fits smoothly.
• Pulley: It’s used together with timing belt, very convenient to use. 20 Teeth contact with the belt, that minimizes the chance of the belt slipping.
• Locking Spring: With the springs, you can add the right tension you need and make your prints much more precise.
• Mounting Block: The mounting block is used in open belt buckles for 2GT belt (and some other models). Make sure that the gearbox is firm and free from loosening.
• Compatibility: compatible with most 3D printers. Attention: Small parts, keep away from children!