RAM Mounts 1.5" Track Ball with T-Bolt (RAP-354U-TRA1)

RAM Mounts 1.5" Track Ball with T-Bolt (RAP-354U-TRA1) RAP-354U-TRA1 The RAP-354-TRA1 RAM Track Adapter Base with 1. 5 inch RAM rubber ball has a T-Slot attachment on the bottom, allowing it to attach to track rails found on many kayaks. Simply twist the ball clockwise to tighten, and counterclockwise to loosen and adjust the positioning. ,This version is supplied with a rubber pin-lock washer, and the T-bolt plate is roughly 12mm x 25mm