• 2.5" round plate with B size 1" rubber ball connects to included 2.10" x 2.60" steel backing plate that connects to RAM® components containing the universal AMPS hole pattern
  • Connect a B size RAM® double socket arm and device holder for your use-case; ball and socket technology allows for near-infinite adjustability
  • Components made of powder-coated, marine-grade aluminum, and steel for durability and reliability in the most demanding environments
  • Backed by a lifetime warranty
RAM® Drill-Down Dashboard Ball Base with Backing Plate - B Size
Part#:RAM-B-202-225-2U UPC:793442848988
Meet your new go-to mount and component option for pairing any holder or dock with a dashboard drill-down mount. The RAM-B-202-225-2U consists of a 1" B size rubber ball connected to a 2.5" diameter round plate with the universal AMPS hole pattern and one 2.10” x 2.60” steel backing plate (hardware included). Connect a B size RAM® double socket arm and device holder that's perfect for your use-case. RAM®'s patented rubber ball and socket technology dampens shock and vibration and allows for near-infinite adjustment, enabling perfect viewing and operating angle of your device.

hardware included

(1) 2.10" x 2.60" Steel Backing Plate
(4) #8-32 x 1" Machine Screws
(4) #8 Split Lock Washers
(4) #8 Flat Washers

hole pattern

Round Plate:
4-Hole AMPS: 1.181" x 1.496"
3-Hole 120-Degree: 1.812" Diameter

ball size

B Size (1")

weight capacity

Standard Use: 2 lbs
Heavy-Duty Use: 1 lb


Marine-grade aluminum

packaging type

Poly Bag


0.41 lb