Features Advantage: This timing belt is very easy and convenient to install and disassemble, reliable and durable. And it is a wonderful replacement for old or broken direct equipment Material: This timing belt is made of 100% brand new high quality aluminum alloy material. Its surface is treated with oxidation and ensures maximum durability. High quality materials can bring you a good experience Convenient for Installation: Timing Belt Pulley Easy and convenient for installation and disassembly, reliable and stable in use. Wonderful replacement: timing belt pulley. Wonderful replacement for the old or broken one, direct installation. Wide application: this timing belt pulley is widely used in milling machines, gear forming machines, drills, dentition machines and other mechanical transmission occasions Specification: Condition: 100% Brand New Item Type: Timing Belt Pulley Material: Aluminum Alloy Teeth: 60 years old 20 teeth Space: approx. 2mm/0.08inch Opening: approx. 8mm/0.31inch Belt width: approx. 6mm/0.24inch Belt length: approx. 200 mm/7.9 inches; 280 mm/11 inches; 400 mm/15.7 inches. Specification: 3pcs/set Package List: Synchronous Wheel 3 x 20 Teeth Synchronous Wheel 3 x 60 Teeth 3 Belts Package List 3 x 20 Teeth Synchronous Wheel 3 x 60 Teeth Synchronous Wheel 3 x Belt