ITEM NAME:10pc 1/4" to 3/8" Reducer Bushing Convert Screw Adapter for Tripod Camera DSLR Everyone is a moon and has a dark side which he never shows to anybody..This 3/8"-16 to 1/4"-20 Reducer Bushing allows you to convert any standard 3/8"-16 thread for the insertion of a standard 1/4"-20 screw. Fit as well as original reducer. Allows user to mount a professional-style head with a 3/8"-16 threaded hole on a tripod that has a 1/4"-20 screw.