Compatibility - Multi-angle drill base pedestal mounting solution for monitor, tablet PC and more with VESA 75X75mm mounting holes. The AMPS hole pattern is designed to install directly on dashboards, workbenches or any flat surface. (Complimentary 4 sets of 316 marine grade stainless steel machine screws, lock nuts and sheet metal screws). Super Heavy Duty - Constructed of Powder-Coated Marine-Grade Aluminum and Stainless Steel Hardware. The mount has been Salt Spray Tested for thousands of hours (including stainless steel bolts and springs) for superior corrosion resistance. Cast from one piece of aluminum for durability and longevity. The weight capacity of the all-aluminum mount can be up to 15.5 lbs at rest and 4.5 lbs at motion. Universal Design - Includes a C size 5.9" length 1.5" double socket arm, a VESA hole pattern square Base, and a APMS hole pattern round base; Perfectly fits 1.5 inches / C size / 38mm components, compatible with RAM Mounts, Arkon, iBolt and others. 360 Degree Rotation - The ball and socket technology allows for near-infinite adjustability. Multi-angle drill base pedestal mounting solution for monitor, tablet PC and more with VESA 75X75mm mounting holes. The AMPS hole pattern is designed to install directly on dashboards, workbenches or any flat surface.