Garelick Grommet Pin Boat Cover Support PoleSupports boat cover canvas, keeps weather covers tight and helps protect boat interiors. Eliminates pockets that trap water and cause damage. Helps prevent salt water corrosion and weathering. Made of anodized aluminum tubing with 3/8" grommet pin end. Adjustable, aluminum 7/8" diameter pole telescopes into 1" with quick lock fitting.