set2: 5 x Screw Adapter + 1 x 360 Degree Arm Mount (Arm Mount ONLY, other accessories not included)360 Degree rotating arm (one end fixed), universal for Gopro 3 3+ 4Quickly change the angle instead of re-screwingEasy to use and install, works perfectlyPrecision metal screws, silver plated, standard tripod mounting threadHelp you connect rigs of screw thread within minutes; Can connect tripod, shoulder rig, lightstand, micro-film equipment, camera cage and othersHelp you gain more rig combination possibility and freedom in your photo shootingApprox.diameter:0.62 inch/16 mm; Approx. length: 0.78 inch/20 mm; Lightweight, easy to carry and use, they can even serve as back up for the counterpart in your rigsGreat value in both versatility and functionalityThese 5 pieces screw adapter are made of metal with sturdy construction; There is great value in both versatility and functionality.Style:1/4 inch Male to 3/8 inch Malecolour:Silver/BlackMaterial: metalPackage Contents:5 x Screw Adapter1 x 360 Degree Arm Mount (Arm Mount ONLY, other accessories not included)Only the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.