High safety factor：Black screw-in eyebolts combined with elastic safety buckle design can maximize the protection of items from falling in indoor and outdoor environments. Easy to install：Just use a hammer, wrench or drill to screw or screw the heavy duty screw hook into a wooden or concrete wall. The design of screw facilitates a better grip in the wall for quick installation. Long service life：The wooden ceiling hooks are made of carbon steel with a black zinc finish for high load capacity. It is waterproof, rust-proof and non-slip, and can be used for a long time in indoor and outdoor environments. Wide range of applications：The black screw eye bolts are suitable for indoor and outdoor environments, and can be used to hang large objects such as potted plants, lanterns and bird cages. birds, or to place small objects such as cups. Quality Product Service：You will receive 30 screw hooks if you have any questions, you can contact us by email and we will reply you within 24 hours.