ROKK Midi Adjustable Rail MountA fully adjustable anodized aluminium mount that enables you to attach devices directly onto a rail, pushpit or pedestal measuring 1" - 1-1/4" (25.4 to 33.7 mm) in diameter.Compatible with a range of top plates that enables you to mount marine electronics (sold separately.) Features: Metal on metal, ball and socket system gives smooth, secure adjustment. Zero loss of clamping force over time. 360Adeg of rotation. 270Adeg of tilt. Locking design ensures high clamping force with minimal user effort. Corrosion-resistant marine-grade aluminum. Engineered to withstand high shock loading. Technical Specifications: Material - 316 stainless steel and glass-filled nylon Dimensions - (H x W) - 5.04" x 2.17" (128 x 55 mm) In the Box: Mount Mounting hardware Instruction manual *Sold as an Individual Specifications: Mounting Style: Rail Cut/Uncut: Cut Box Dimensions: 2"H x 3"W x 8"L WT: 1.3 lbs UPC: 819505020327 Quick Guide (pdf)