RAM 5" Max Width Clamp Base with 1.5" Ball - RAM-247U-5

The RAM-247U-5 is a clamp base with 1.5" rubber ball that will connect to rails up to 5" maximum in width. Specs & Features Material:Powder Coated Marine Grade Aluminum Ball Size: 1.5" Rubber Ball Size Note:The "U" in the part number reflects product packaged in poly bag. Weight:1.55 lbs.   Compatible With Compatible Arms and Mounts RAM Composite Double Socket Swivel Arm for C Size 1.5" Balls - RAP-200-2U RAM Double Socket Arm With RAM® Pin-Lock™ Security Knob And Key Knob For C Size 1.5" Balls - RAM-201-SU RAM 18" Rigid Aluminum Rod Arm With 2 (Qty) Single Open Sockets For 1.5" Diameter Balls - RAM-316-2U RAM Medium Length Double Socket Arm for C Size 1.5" Balls - RAM-201U RAM Long Length Double Socket Arm For C Size 1.5" Balls - RAM-201U-D RAM 1.5" Ball Medium Length Double Socket Arm with 2.5" Round Base AMPs Hole Pattern) - RAM-103U RAM 1.5" Ball Short Length Double Socket Arm with 2.5" Round Base AMPs Hole Pattern) - RAM-103U-B RAM Mount - RAM Composite Double Socket Swivel Arm for C Size 1.5" Balls - RAP-200-12U RAM Composite Medium Length Double Socket Arm for C Size 1.5" Balls - RAP-201U Components RAM 5" Max Width Clamp Base With 1.5" Ball (No Hardware) - RAM-247U-5NH