Check the listing for details. RAM Drill Down Short Mount with Two Square AMPS Adapters & Backing Plate. Condition: New, Made in USA. Listed at 41.99 USD. Features: ---Two square 2" x 1.7" bases each with 1" rubber ball ---Each base has four pre-drilled holes at each corner, making the universal 1.5 x 1.188 (hole spacing) AMPS hole pattern - Connects to many cradles ---Short size double socket arm - overall length: 2.42"; socket to socket: 1.75" ---Steel backing plate adapter with 8 x 10-24 tapped holes, AMPS and 1.5” x 2” hole patterns ---Constructed of powder coated marine grade aluminum and stainless steel ---Can be mounted to a flat horizontal or vertical surface ---Overall length fully extended: 3.75" ---Holds up to 2 lbs. ---Made in the USA Included Hardware: ---(4) #10-24 x 1" Thread Locking Screws ---(4) #10-24 Nylock Nuts Brand: RAM Mounts Part number: RAM-B-141-A-BPU Warranty: Manufacturer's lifetime warranty.