Our Stainless Steel Spring Balls fit into our SST78H Stainless Steel Tubing. The SST78H tube then slides into our SST1H tube as a sleeve. By drilling holes into the ⅞” tubing as specified intervals, you now have an adjustable stanchion for any bimini top or navy top. Our #6101 ⅞” Stainless steel slip fit eye ends fit on one end of the stanchion and our #6103 1″ eye end fits on the other. Both eye ends fit into our standard deck mounts.