t is equipped with 1/4?? screws on both ends respectively. Thus, it could attach monitors via the 1/4?? screw on the one end and attach accessories with 1/4??-20 threaded holes on the other end, like NATO Rail 1973, 15mm Rod 1182, and Quick Release Rod Clamp 1976, etc. Mounted with a 1/4?? screw is a rubber cushion that protects monitors from scratches and helps to lock the monitor tighter. It features an ergonomic wingnut for great convenience that could help to adjust any angles based on your needs. Maximum payload: 1.5kg Compatibility: Universal Package Includes: 1 x 5.5 inches Articulating Arm 2065 Product Dimensions: 86 x 60 x 25mm Net Weight: 168g Package Size: 155 x 100 x 40mm Material(s): Aluminum Alloy / Stainless Steel / Free-cutting Steel