RV Designer Gas Prop Bracket Stud 10mm Ball. The G855 is ball stud bracket with a 10mm ball. It features a black powder coated finish to prevent rusting. Mounting hardware and fasteners are included for installation. Features of RV Designer G855 Gas Prop Bracket Stud 10mm Ball Ball stud bracket 10mm ball stud Features a black powder coated finish to prevent rusting Mounting hardware and fasteners are included for installation Two per package Package Contents: RV Designer G855 Gas Prop Bracket Stud 10mm Ball RV Designer G855: Gas Prop Bracket Stud 10mm Ball