External diameter	19mm	25mm
Length	25mm	30mm
Grub Screw	4 of M3 (included)	4 of M4 (included)
Material	Aluminium

Couplers are used to connect rotating shafts. These couplers are flexible, which means that turning is possible even if the shafts are not perfectly aligned.

Each shaft is fixed to the coupler with two included screws (perpendicular to each other), ensuring a perfect fit between the parts.

The price is for one unit.