Duret leveCeiling hook for suspension is made of SUS304 stainless steel, anti-corrosion, rust, non-toxic and harmless, strong and durable. .360 rotation 360 material ceiling hammock hook can rotate freely and can be widely used to avoid entanglement or twisting. .Indoor and outdoor use Hanging ceiling hook for wood concrete set, hammock, sandbags, chandelier, outdoor swings, hanging chairs, aerial yoga, rope climbing, basically meets most items you need to hang . .Easy to installHanging hammock hook with 2 bolts suitable for concrete applications and 2 screws suitable for wood applications, the product itself is reserved with two holes for the screws to pass through and the installation can be completed in minutes, whether on concrete or wood. .