Durable 201 Stainless Steel: Yoga hammock wall mount hook use solid 201 stainless steel. Compared with common stainless steel, it’s more wear-resistant, antirust and corrosion-resistant. This material is perfect for long time outdoor work. Solid stainless steel structure provides higher strengthApplication: The U ceiling anchor is suitable for indoor and outdoor use,Use with hanging swings, chairs, hammocks, aerial silks, or anywhere you need dependable, smooth rotation without twisting chains or ropesFor install - First to mark the 4 holes by the hooks, then insert the screw to ceiling by the driver tool; Take the stud detector and detect the metal or wood stud to ceiling if you use for concrete or dry wallLoad 500KG: The aerial ceiling hook is specially engineered to safely support up to 500kg. Hang your body or equipment with confidencePackage included: 1 * Ceiling Cross mount (anchor); 4 * cement screws. Provide easy and safe installationPack Quantity : 10pcsType : ScrewsMaterial : Stainless SteelBrand : Other