EASY INSTALLATIONChristmas lights hanging hooks are quick and easy to install.use a phillips screwdriver to easily screw the nail into the wooden beam or tap it with a hammer and tighten it again so the installation completes quickly, saving your time and effort SIZE AND PACKAGINGYou will get 40 Pack outdoor hooks, the product is contained in a plastic box.Plastic box length 128 mm/5.04 inch,width 65mm/2.56 inch,height 20 mm/0.79inch".Q hook Length 35mm/ 1.37inch .The opening hook is 7mm/0.28 inch,M4*25 screw Thread length 22mm/ 0.86inch screw length is firm HIGH QUALITYWind 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 10 pounds,suitable for interior and exterior use. WIDELY USEDPerfect for daily use of securely hanging light weight items such as outdoor holiday Lights, drip line,potted small plants, bird feeders,birdhousess,ropes,chains,wind chimes,LED light and more QUALITY MATERIAL are made of quality zinc alloy,smooth surface without burrs,strong toughness durable and rustproof,can be applied for a long time and can be reused