RAM® Square Post Clamp Base for Posts up to 5" Wide - D Size RAM-B-107U The RAM-109V-4U consists of a

The RAM-109V-4U consists of a 6" long curved swing arm with open socket and vertical surface mounting base

The RAM-B-111U consists of a medium double socket arm

We’ve paired a B-size 1" ball base that accommodate bars 3/4" to 1" in diameter with a B-size standard length arm and diamond base so that you can connect any of the RAM Mounts cradles or anything else with the AMPS hole pattern

this system operates easily and does not detract from the overall versatility you've come to love in your RAM Laptop Mount

RAM® Square Post Clamp Base for Posts up to 5" Wide - D Size RAM-B-107U The RAM-109V-4U consists of aThe RAM D 247U 5 consists of a 5" clamp base with 2. 25" ball.