Many people still have old darts with the 1/4 inch BSF threads and struggle to find a shaft that they like for them. These Add A Grams solve that problem by screwing into the barrel of the dart using a quarter inch BSF thread on one side and reducing it to a standard 2BB dart thread on the other thus working as a converting adaptor. You then simply screw in your choice of 2BB shaft. Please note that although the picture only shows one these are sold in sets of three.
We also stock three varieties of old fashioned 1/4 inch BSF thread shafts.