Sufficient to Use and Replace: there are 40 pieces of hurricane window clips for plywood in the package, which are enough to meet your use and replacement; It fits 1/2 inch thick plywood, applied to fix the plywood on the window Reusable and Durable: these plywood window clips are made of carbon steel materials, which are wear resistant, strong and rustproof, reusable and reliable, designed to clamp the wall protruding outward at a 90 degree right angle, play the role of fixing plywood and can protect your window in the storm No Required Other Tools: firmly clamp the plywood like a spring clip during installation; Use original wedge shaped grip principle; No required tools, caulking, adhesives or glues; You can easily install the hurricane shutter clips by yourself Easy to Install and Remove: to fit the plywood, you need to measure the length of the window inside the frame and subtract 1/4 inch, place 2 hurricane clips along the edge of the plywood toward your tension leg, no more than 24 inches apart; You need 2 storm window clips on each side to push the plywood into the window frame, to make sure the clips holding the frame; Remove the clips, press down on the plywood, while lifting the side tension legs, the plywood will come out Keep Your Home Safe: these hurricane clips for windows are designed for protecting your home from winds, storms and hurricanes when hurricane season comes, and improve the safety of your house Features: When you live in a hurricane risk area, it is better to prepare security for your home before the storm hits, as the windows are vulnerable to hurricane spoil and you can use these plywood window clips to guard them with plywood. The hurricane clips for plywood provide a simple and quick way to keep windows well during high hurricane winds. Specifications: Main color: black Main material: carbon steel Size: fit 1/2 inch thick plywood Package includes: 40 x Hurricane window clips Warm notes: Please allow slight deviation due to manual measurement. Please allow slight color differences due to different monitors. Pointed items are included, it is recommended to wear tool gloves to avoid injury when using, and please keep it away from kids.