【Adjustable Furniture Support Legs Size】The minimum height of each furniture legs is 10 Inches (25cm), the longest can be adjusted to 17 Inches (43cm). The height of this Bed legs can be adjusted with the swivel base to select the right height to suit uneven floors. If You are considering upgrading the furniture in your home, these Bed Support legs will be a good choice for you. 【Upgrade Feet Base】Our bed leg base has been upgraded and improved. The base area has been widened and thickened to give the legs a stronger and more secure grip on the floor, and the bottom is also made of high quality rubber pads which are effective in preventing slippage, reducing noise and protecting the floor. 【Versatile Application】Suitable for a variety of bed types and styles, these adjustable bed feet can be used to level uneven floors or to achieve the desired height for mattresses, bed frames, and other bedding accessories. 【Easy Installation】The adjustable bed middle support legs can be installed in two ways: ① If there are holes on the bed frame, line up the double holes with the legs and then tighten the screws. Finally rotate the base of the bed support legs for wood slats until the bed frame is stable. ② If the bed frame does not pre-existing holes, secure the bed frame with center support legs and auxiliary plate and then use screws to tighten it in place. 【Packing List】 Adjustable height bed support legs * 4, mounting auxiliary plate * 4, fixing screws * 8, fixing nuts * 8. If you encounter any problems in the use, please feel free to contact us, we will try our best to solve for you. 4 Pcs Adjustable Height Bed Support Legs [with Screws] 10-17 inch, Metal Heavy Duty Bed Replacement Legs Bed Slats Support Legs for Bed Frame/Bed Center Slat/Furniture (White)