Bed Frame Legs Replacement for Adjustable Base Platform Screw in Support Parts Different adjustable bed frames have various bolt threads, 70% of customers don't know the size of their bed leg screws, so we provide 8mm and 10mm common screws for 93% of the bed frames, and you can change them to fit different brands of bed frames, if you need 12mm you can find it in the store search to buy: Benbuoo M12 Bed Replacement Screws The product is made of sturdy metal with a recessed top center and flat edges for more support without rattling, and also has a non-slip and anti-knock rubber sleeve on the bottom. Package includes 4 bed Legs that you need to assemble yourself, as well as a wrench tool for easy replacement and installation, preventing you from having to go to a distant hardware store for parts. You must determine the height you need before purchasing, the replacement may take some time, but overall it is worth effective, if there are missing parts, you can contact us, we will take care of it for you. Any questions such as missing partslet me know and we will provide you with satisfactory service.