The 2GT Pulley is made of aluminum alloy material, so it is sturdy, durable, anti-rust, and anti-corrosion effectively. It is widely used in 3D printers, milling machines, engine lathes, gear shapers, hobbing machines, drilling machines,s or other machinery transmission occasions.Specifications:Model: GT2Types:GT2-16 Teeth width 6 inner hole 6 high 14 (silver normal version)m4 top wireSize:6×6.35x16Usage: 3D printer accessoriesUsage: printer accessoriesMaterial: aluminum alloyApplicable scenarios: 3D printer wheel wear and replacementPacking List:1*2GT Pulley