- Essential connector between DiAFLX and Hand-held polishing machines. - Quick and convenient change for DiAFLX by VelcroTM on the backside.     For Handheld M/C Outer diameter Specifications Remarks Type 4"(100mm) Soft(With 5mm Sponge) Rigid Male Velcro glued on      For DiAFLX-Edge Series      Outer diameter Specifications Remarks Type 5"(128mm) Soft(With 5mm Sponge) Rigid Male Velcro glued on 6"(128mm)