RAM 1" Extra Ball Accessory for the RAP-B-121BBU

The RAP-B-121BBU connects to RAP-B-121U mounts; it is used as an extra ball to mount an additional device to your current mount. Specs & Features Material:Powder Coated Marine Grade Aluminum Ball Size: 1" Rubber Ball "B" Size Note: The "U" in the part number reflects product packaged in poly bag. Weight:0.07 lbs. Videos RAM EXTRA BALL UNIVERSAL CLAMP RAM® Mounts: Ball Sizes & Weight Capacities Compatible With Compatible Arms and Mounts RAM 1" Ball Short Length Double Socket Arm with 2.5" Round Base that contains the AMPs Hole Pattern - RAM-B-103U-A RAM Double Socket Arm for B Size 1" Balls - RAM-B-201U RAM Double Socket Swivel Arm for 1" Balls (Overall Length: 6.25") - RAP-B-200-2U RAM 1" Ball Medium Length Double Socket Arm with 2.5" Round Base that contains the AMPs Hole Pattern - RAM-B-103U RAM Medium Double Socket Arm, Long Double Socket Arm & Double Ball Adapter for B Size 1" Balls - RAM-B-201-201U-C RAM Short Double Socket Arm for B Size 1" Balls - RAM-B-201U-A RAM Lo