Height adjustable bed support legs, with ingenious design, make your bed frame instantly revitalized. Easily rotate the base, can be freely adjusted between 5.1 and 8.3 in., no matter what the terrain, can be stable, enjoy a restful sleep. The 30% wider support base is stable as a rock, giving you the most solid support. Full leg thread design, more than 3.5 times thicker than similar products on the market, double the load-bearing capacity, so that your bed frame is stable. Not only that, but its range of applications is beyond imagination Whether it is king-size, king-size bed, metal bed frame, plank bed or even all kinds of furniture such as dining tables, chairs, sofas, TV cabinets, you only need 1 set to easily handle all adjustment needs. Make the layout of the home space as desired, showing personalized style. The surface is specially treated, waterproof, rust-proof and wear-resistant, durable. The thickened material not only ensures stable support, but also protects your floor from damage, reduces noise interference and creates a quiet and warm home environment. Easy and quick installation, no professional skills required, just a few simple steps, you can enjoy a high°of freedom to adjust the fun. The kit includes 4 adjustable bed support legs and plenty of bolts, so you can easily get started and instantly have the height of your ideal home. Material: Plastic.