Fomito 10in1 1 4 to 3 8 Convert Screw Adapter for Tripod,Monopod, Ballhead, Stand and Video light These are 10 pcs of threaded adapter with female 1/4" to male 3/8" thread. It allows to convert any standard 3/8" thread to a standard 1/4" screw. Material: Metal Package includes 10 pcs screws and 1pcs ceaning cloth. Brand Name:Fomito