SeaStar Clamp Block Stringer Mnt 1-SA27579P by Sierra International $99.99 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart SeaStar Teleflex Clamp Block Stringer Mount #1-SA27579P Inboard Clamp Block, 4-1/2" stand off - For ski boat inboard, Heavy Duty with Black Metal Flake Finish