Single 17mm Bravo Ball. 17mm Bravo Ball that can be attached to anything you would like. Simply Drill a 1/8" hole in the location you want it. Insert screw and washer thats provided on the back side and screw on the Bravo ball. 3/8 wrench and Phillips head screw driver will be need to tighten firmly.
Included 17mm Bravo Ball, 3 Different Length Attachment Screws and 1 Washer