This hammock stand kit includes 2 round eyelets with ring, 4 lag screws for wood and 1 expansion screw for concrete, 2 spring carabiners for optimal quality. They are thick and sturdy! Even the carabiners. All parts are made of the best quality 304 stainless steel. Our hammock accessories are the pieces you need to create an indoor oasis, the place where you go to read, be alone, or even sleep. These premium pieces are for use indoors/outdoors, rafters, beams, cedar, wood, concrete, or trees to create your own playscape, playground, swing set, porch swings, or hammock chair swings. Supports 800 lbs when properly attached (400 lbs per eye pad), making them perfect additions to a child's bedroom or playroom. Experience the big smiles of children and grandchildren as they enjoy their playground swings during the spring, summer, and fall seasons on their wooden playsets.