Alumiunm magnetic propeller balance for prop diameter up to 82mm.
Suitable for 2mm, 3mm, 3.175mm (1/8"), 4mm, M4 treaded, 4.75mm(3/16"), 5mm, 6.35mm (1/4") shaft sized propeller.
Color: Red anodized
Note: the prop shown is the picture is not part of this sale