The RAM-B-347U base consists of a B size 1 diameter rubber ball connected to a 2 x 1.7 square base. The base has four pre-drilled holes at each corner using the universal AMPS hole pattern.

Features:

• 2 x 1.7 square ball base features industry-standard AMPS hole pattern with four pre-drilled holes at each corner
• Included B size 1 RAM® rubber ball allows for connection to any B 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

Specifications:

• HOLE PATTERN: 4-Hole AMPS: 1.181 x 1.496 (29.9mm x 37.9mm)
• THREAD PITCH: 1/4 -20
• PLATE SIZE: 2 X 1.7 (50.8mm x 43.1mm)
• BALL SIZE: B Size (1 25.4mm)