[Indoor Outdoor Use]: Perfect for swings, seesaws, swing chairs, sandbags, or anything heavy on shelves.[Corrosion resistance, high hardness]: The 304 stainless steel ring is made of high quality raw materials. No rust, corrosion resistance, high hardness, non-toxic and non-polluting environment.[Easy to Install]: We pre-drilled two holes for bolting to wooden or concrete beams. It has 24 concrete anchors and 4 hex square head bolts + 2 hooks. It adopts a unique one-piece design and can be installed in minutes.[Rotary design]: The innovative design makes the use more flexible, and the scope of use is wider, such as a playground, swing, porch swing or ham swing[Safety and Durability]: Trust these high-quality rotating clothes hangers to safely suppo