Height Adjustable Bed Support LegsThe height of this bed legs can be adjusted with the swivel base to select the right height to suit uneven floors. The shortest is 5.9 inches, the longest can be adjusted to 11 inches(PlLEASE CHECK required length before you buy to make sure the size is exactly what you need.NOTE: For structural stability, we do not recommend that you adjust the bed frame legs to their maximum height for use. Bed Legs FunctionSome mattresses are so heavy that without proper center support, they may cause the bed slats or metal bed frames to sagbendbreak.The bed center support legs adds the necessary support to your bed slats or bed frame, effectively protecting your bed base/ wooden slats/ platform bed frame from sagging and damage. Save you money on bed repair and replacement. Worried About Installation? Only a screwdriver or handheld drill is required for easy installation. Regardless of whether the original has holes, slats, wooden bed beams, iron bed beams, it can be installed. Because we also come with special screws that can drill directly through the iron bed beam. Strong Support CapacityAdjustable bed support legs can hold up to 600lbsThe random sampling limit test can withstand a maximum of 1050 Lbs.perfect for various bed frames, including king-sized beds and those with heavy mattresses, providing extra support. Material CharacteristicsUsing super-hard engineering plastic (PP), the product is lighter in weight, waterproof, rust-proof, wear-resistant, not easy to damage the floor, silent. More Application ScenariosThis adjustable support legs is not only suitable for bed, but also suitable for cabinet, ,table,couch, ottoman, chair, TV stand, night stand, love seats, sofa, desk, footlocker, wardrobe, coffee table,bathroom cabinet, dresser, shelves, bookcases or other home furniture. What's in the Box5.9--11 in Adjustable height bed furniture support legs*4,Special screws*24. The adjustable range of our furniture legs is so large that having them is equivalent to having 6/7/8/9/10/11 inch furniture legs at the same time, which is more practical because of the adjustable height. If you encounter any problems in the use, please feel free to contact us, we will try our best to solve for you.