RAM CAMERA - CAMCORDER - SPOTTING SCOPE BASE STRAP MOUNT with STANDARD ARM RAM-B-108-202A (SKU 6407)Genuine RAM part no: RAM B 108 202A RAM W STD BASE & V BASE W STRAPS 1 2 2 Base design The RAM B 108B RAM Mount Marine Grade Aluminum Rail Strap Mount Base is a clamping rail strap base. The base includes a 6 inch metal strap and an 8 inch long metal strap designed to fit a rail or post with a diameter from 1 to 1. 9 inches. When the base is mounted, a 1 inch rubber ball sits at a right angles to the mounting post. Arm design: The Powder Coated Marine