Pair of rowing fixtures from stainless steel can be used for rowing machine shaft diameter of 40 – 45 mm, the attachment for the paddle shaft is equipped with a joint that rowing machine pivot is supported by a turn lock into place, transforming a Dont Fall Out. On the inlet has 2 drill holes a 8 mm for fastening to the boat body. Outer Diameter of the insertion bolt, 21 mm, Depth: Approx. 48 mm Overall length 170 mm.