1Pcs 2GT-16 Teeth Timing Pulley Wheel 
 5mm Bore Inner For 3D Printer 
 Feature: 
 Name: 2GT-16 Aluminum tooth belt wheel 
 Tooth: 7.5MM Overall Length: 18.5MM 
 Inner:  5MM 
 Two M3 keyhole 90  distribution Outside 
 Tooth number: 16 
 Tooth pitch: 2mm Hole diameter: 5mm 
 Flange: double Tooth width: 7mm 2PS 
 Setscrews: M4X4 (Stainless steel) 
 Package included: 1 pcs 2GT-16 Teeth 
 Timing Pulley