The new and vastly improved spare shaft holder. Built for finned shafts from strong commercial-grade starboard that will never dry out crack or fade. The Spare shaft holder now has a replaceable high-durometer rubber insert that slides into the back of the holder to ensure the spear stays tight in the holder. The front clip keeps the shaft tight to the speargun. The rear holder has a slot on the top and bottom for the loading fin to keep the shaft from spinning. Comes with mounting screws and installation instructions. Drilled for both 5/16 or 9/32 shafts.