uxcell 21mm Male to 19.5mm Female Hex Head Bushing Straight Connector Product Name : Bass Hex Bushing;Male Thread Diameter : 21mm/ 53/64" Female Thread Inner Diameter : 19.5mm/ 49/64";Overall Size : 38 x 26mm/ 1.5" x 1"(H*Max.D) Material : Brass;Color : Gold Tone Net Weight : 40g Package Content : 1 x Straight Hex Thread Bushing