Usage Tips:[Universal and Customizable Application]Our bed support legs are perfect for a wide variety of furniture, from beds to sofas, couches, dinettes, chairs, and more. Not only are they suitable for King or Queen beds, metal bed frames, bed beams, and wooden slatted beds, but also serve as adjustable furniture legs for tables, dressers, TV cabinets, closets, and more. [Fully Adjustable Height Support]The height is easily adjustable with a swivel base to match uneven floors. With the shortest distance of 8.3 inches and up to 14.5 inches, simply select the right height for your needs. Do ensure to check the required length before purchase. For smaller heights, we also offer a version with an adjustable range of 5.1 to 8.3 inches. [Upgraded and Strengthened Design]With the support bases widened by 30%, they offer more fixity. Also, our adjustable bolts are more than 3.5 times thicker delivering increased strength. Lastly, our bed legs include height-locking, large nuts to prevent any wobbling or shaking, providing a secure and sturdy support. [Easy Installation]With our bed frame support legs kit, you get 4 pcs of adjustable support legs and 48 pcs bolts. Simply lock the legs under the bed seat using screws, rotate the support legs to the right height and fasten the nut for a secure support. It's a hassle-free process without needing any special tools. [Quality and Durable Material]Crafted with Tough Rigid Plastic , the material offers durability, rust resistance, and resistance to wear and tear. Additionally, the surface is specially treated for a refined finish which prevents any damage or noise. Despite its strength, the material remains light adding no extra weight to your furniture. Even with their durability, these legs do not scratch or damage your floor. Colour:Black Material:plastic Package Contents: 4 x support bracket 24 x screws Only the above package content, other products are not included.<b