CCTREE Flexible Couplings 5mm to 8mm NEMA 17 Shaft Coupler forCreality CR-10 V2 CR-10S S4 S5 Ender3,Ender 3 Pro,Ender 5 Makerbot RepRap Prusa i3 3D Printer or CNC Machine (Pack of 5pcs);

Flexible shaft couplers used in small CNC machines and 3D printers such as Prusa i3.

Package include:
5Pcs x Shaft coupler 5mm to 8mm