This RAM® Track Mount for large size phones (RAM-HOL-PD4-C-354-TRA1U) is made up of a B size 1″ ball molded to a high-strength composite base, a rubber friction washer and a stainless steel T-bolt for sliding into any third-party track system, or the RAM® Tough-Track™ line of tracks. 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. Included in this kit is a B size long length socket arm and a RAM® Quick-Grip™ XL for large size phones featuring adjustable side arms for a form-fitting secure hold with or without a case. This track mount is ideal for mounting phones to the Jeep JL and Gladiator dashboard track mount (RAM-DT-204-TRACK-A12U) and the new Ford Bronco dashboard track mount (RAM-DT-207-TRACK-EXA-29BU).