Replacement tennis net winder crank for all ROYAL brand tennis posts. It fits the 83mm round net post and the 80 x 80mm square net post winding mechanisms.

It fits on a shaft of 10.25mm with lugs of 4.8mm.

Please note that this product is designed specifically for our ROYAL net post series. We recommend our winder ADAPTER for any other net post brands which have an internal winder system.