The RAM-B-272 consists of a 1" diameter ball and base with 9mm hole. This part is often used on motorcycles, attaching to the mirror frame, the main brand of bike for the RAM-B-272U is BMW.

Features:

• Features a 9mm hole designed to attach to the mirror frame of motorcycles
• 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:

• BALL SIZE: B Size (1", 25.4mm)