63mm long single power handle with 45mm dia large knob for Daiwa/ABU bait casters, and 00/15Shimano Conquest 300/400. 2 ball bearing installed. Fits to reels with 8mm shafts. Comes with two nuts (R and L) and cover cap. Best for Millionaire 300, ABU 6500/6600 and Conquest 400. Accepts sway back star drag, and straight shaped star drags of up to 50mm diameter, fine for most ABU 1500-6600 and Daiwa.