RAYSUN 2 Pack Brass 1/4"-20 Female to 3/8"-16 Male and 1/4"-20 Male to 3/8"-16 Female Tripod Thread Screw Adapter 1, Brass Tripod Screw Adapter Converters 1/4" to 3/8"; 2, 1PC 1/4" male to 3/8" female, 1PC 1/4" female to 3/8" male; 3, Made of brass, high quality; 4, Fit as well as original reducer; 5, Package: 2 x Tripod Screw Adapter.