Our exclusive string winder for bass - commissioned by us - not sold in stores! Tough composite material; chuck in any power drill or power screwdriver and change your bass strings in just a couple of minutes. Note: this version will fit average double bass tuning machines, but not those with thick thumbpieces, like most models of Sloane tuners, or machines with wood thumbpieces.
Dimensions of the slot are: 1.875" long, .375" wide, .75" high