The RAM-B-202U consists of a 1" B size rubber ball connected to a 2.5" diameter round plate. This mounting component includes pre-drilled holes using the universal AMPS hole pattern. 

Features:

• 2.5" round plate connects to RAM^® device holders containing the universal AMPS hole pattern
• 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
• Backed by a lifetime warranty

Specifications:

• Hole Pattern: 4-Hole AMPS: 1.181" x 1.496"
• Hole Pattern: 3-Hole 120-Degree: 1.812" Diameter
  
• Plate Size: 2.5" diameter
  
• Ball Size: B Size (1")
• Standard Use: Weight Capacity - 2 lbs
• Heavy-Duty Use: Weight Capacity - 1 lb