These replacement soles are for use with Dexter SST 4, SST 5, SST 6, and SST 8. Can be used on right or left handed shoes. Soles will most likely need some trimming for a perfect fit. Sliding soles are sold in men"s size 15 so they can be customized to fit all men"s sizes below 15 and all women"s sizes. S4: Short Slide Bower profile: A power player or "cranker". The S4 sole reduces sliding and allows the foot to grab the approach. Use this S4 sole when bowling on moderately slippery approach conditions.