RAM® Double Ball Mount with Raymarine Hardware RAM-108-BU Included is a rubber protection

Included is a rubber protection strip to help reduce vibration and to prevent scratching of the mounting surface

The spring loaded Tab-Tite™ cradle makes it easy to load and unload your tablet

This kit is designed to mount nearly any phone to the seat track on most major wheelchair brands

Both balls are c-size

RAM® Double Ball Mount with Raymarine Hardware RAM-108-BU Included is a rubber protectionThe RAM 101 RM1U consists of a 6 inch double socket arm, and two 3. 68" round bases. The top round base contains pre drilled holes that connect to Raymarine devices listed below. Designed into the mount is a 1. 5" diameter patented rubber ball and socket system with adjustment points at both socket ends of the arm. Rubber ball and socket technology allows for almost infinite adjustment and perfect viewing angles.