5Pcs Brass Shaft Coupler Shaft Coupler Shaft Coupler Adapter with Screws and Allen Key for Aircraft Boat Engine 2mm to 2mm/3mm to 4mm/3mm to 5mm/4mm to 5mm/4mm to 5mm/0.197 5mm to 5mm L20XD9

Specification:
Colour: gold.
Material: Brass
Thread Size: M3
Connection diameter: 2 mm to 2 mm/3 mm to 4 mm/3 mm to 5 mm / 4 mm to 5 mm / 5 mm to 5 mm
Total size: 20 x 9mm/0.78 x 0.35"(L*D)

Package includes:
5× Brass Shaft Coupling Connectors for Motor
20 × Grub Screws
2 × Allen key