C. Sherman Johnson Cooler Tie-Down Kit [90-500]Cooler Tie Down Kit C. Sherman Johnson has designed this ergonomic hook to hook turnbuckle to be used to tie down coolers, chairs, dinghies, casting platforms or any other items that need to be secured. The body of the turnbuckle has a cushioned grip which allows adjustment without tools. Knurled nuts lock the turnbuckles in place. The hooks have a 1" opening. These tie down turnbuckles are constructed of 316 Stainless Steel and the hooks are threaded