EASY INSTALLATION: Christmas lights hanging hooks 40-Pack are quick and easy to install, you can use a screwdriver to screw the nail into the wooden beam or directly hammer the nail into the wooden beam with a hammer by widthwise. WIDELY USED: Q hanger hooks for outdoor string lights, home christmas lights hooks, pumpkins halloween outdoor string lights hook, holiday fairy lights & Patio Light hanger, also perfect for indoor outdoor hanging hook to hang light weight items, such as potted plants, wall planter, key, wall decorations. Perfect for securely hanging light weight items such as outdoor Lights, drip line, plants, , curtains, ropes, chains, mugs, feeders, planters and more. HIGH QUALITY: Wind proof and rust proof hangers for lights & other all-year outdoor wire holder, open loop ensures quick release but extension provides total security, hanging hooks holds up to 20 pounds, suitable for interior and exterior use. SIZE: Total Length 3.5cm/1.37inches can fit for many goods, 2.2cm/ 0.86inches screw length is firm. The opening hook is 0.7cm(0.28 inch). Colour:Black Material:Plastic+Metal Package Contents: 40 * Q-Hanger Hooks 40 * screw 40 * Expansion tube Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.