The RAM-D-247U is a clamp base with 2.25" rubber ball that will connect to square posts ranging from 1.75" to 4" in width. Ideal for forklifts, the slotted holes on this base make this variation the most universal clamp base option; compatible with vehicle-mount computers and rugged tablet PC's.Features* Clamping base ideal for square posts from 1.75" - 4" in width; adjustable and easily removable
* Included D size 2.25" RAM® rubber ball allows for connection to any D size RAM® double socket arm; ball and socket technology allows for near-infinite adjustability
* Made of powder-coated, marine-grade aluminum for durability and reliability in the most demanding environments
* Backed by a lifetime warrantySpecificationshardware included:Assembly Hardware
(2) 5/16"-18 x 3.5" Hex Bolts
(2) 5/16"-18 Nuts
(2) Flat Washers
(2) Lock Washers
(2) Rubber Capsclamp range:1.75" - 4" widthball size:D Size (2.25")weight capacity:6 lbsmaterials:Marine-grade aluminumpackaging type:Poly BagWeight:1.59 lb