Compatible with DIY RC electric boat,used to connect the motor with the drive shaft.
Made of stainless steel,durable to use.
Well made,a good replacement for your old or broken one.
A variety of sizes available to be chosen.

Material: Stainless Steel
Connect to Flexible Shaft :4mm
Connect to Motor Shaft:3.17mm / 4mm / 5mm /6mm(Optional)

Package List:
2x Flexible Coupling
2 x Grub Screw