Door Anti-Sag Kit:Contain 1/8" vinyl coated steel cable, turnbuckle, d-rings, lag screws, S-hook, and cable clamps. No need to go to the hardware store to purchase separately,Eliminate Door Sag:Suitable for light small and medium-sized wooden doors, restoring worn and sagging door heads to a horizontal position, make the door switch slide smoothly,Thickened Coating: Black cable is coated with a soft plastic coating and will not scratch people or animals, thickened coating increasing the usage time of the product,Easy To Install:Just install the loops on two corners of the fence, loop one of the the cable through, attach the other end of the cable with the S-hook, and turn the turnbuckle to tighten the cable as needed,Multipurpose Cable Kit: Suitable for bedroom wooden hangers, home green plant placement racks, yard drying racks, sliding door kits, cable railings, grapevine tension cables, door support cables, etc