ITEM NAME:1/4" to 3/8" inch convert screw thread adapter f tripod ball head QR plate 63# Description Description: 100% Brand New and High Quality With the surface of chromium plating, wear-resistant and durable 1/4" to 3/8" convert screw adapter for cameras, tripods, ball heads, light stands, flash brackets and monopods etc., to be joined, perfect matching A special designed tripod convert screw adapter Inside diameter: 1/4†³(British system) Outside diameter: 3/8†³(British system) Material: Copper Color : Silver Package Included: 10x  1/4" to 3/8" Tripod Monopod Convert Screw Adapter High quality store for you! 10x 1/4" to 3/8" Thread Convert Screw Adapter.A special designed tripod convert screw adapter. 10x 1/4" to 3/8" Thread Convert Screw Adapter. We'd like to settle any problem in a friendly manner. Material: Copper. We want to make sure you are happy with our item.