The bottle opener mold and bottle opener insert are very easy to install. First, make sure the direction of the metal bottle opener insert is consistent with the direction of the bottle opener, and then tighten the screws with a screwdriver, and you get a perfect bottle opener. The bottle opener hardware is made of stainless steel material, which is not easy to break or deform, -, rust-proof and has a long service life. With this bottle opener insert, you can apply various materials to DIY bottle openers as needed, such as wood, metal, plastic, resin, etc. The finished product is also a gift for family and friends. The package contains 45 sets of bottle opener insert kits, including screws and screwdrivers.