RAM® Aluminum Track Ball Base with T-Bolt Attachment - B Size FishTrax 1C This dock will support both

This dock will support both variations of the Sonim XP5plus

The RAM-101U-235-UN7 consists of a double u-bolt base

5" diameter round bases with the universal AMPS hole pattern

short double socket arm and 1" ball base with 1/4"-20 female thread

RAM® Aluminum Track Ball Base with T-Bolt Attachment - B Size FishTrax 1C This dock will support bothThe RAM Track Ball is made up of a B size 1" ball molded to a marine grade aluminum base, a rubber friction washer and a stainless steel T bolt for sliding into virtually any track system. Simply insert or slide the Track Ball into your track and twist the ball clockwise to tighten in place. Twist counterclockwise to loosen or adjust the ball.