1.[SIZE&PACKAGE]: The total length of this bed frame support leg is 180mm/7.09'; the length before adjustment is 120mm/4.72'; the total thickness is 39mm/1.54'; and the width is 110mm/4.33'. The package includes 12Pcs x Adjustable bed legs; 24Pcs x Fixing screws; 24Pcs x Fixing nuts; 12Pcs x Gaskets 2.[MATERIAL]: The bed legs are made of durable iron with thickened tube walls, which have strong stability and load-bearing capacity. They include bottom adjustment screws and non-slip rubber pads to protect the floor and reduce noise 3.[ADJUSTABLE HEIGHT]: These bed support legs are adjustable allowing you to choose the right height to accommodate uneven floors, perfect for your everyday needs. The adjustable height range provides flexibility and allows for optimal weight distribution on the bed 4.[EASY TO INSTALL]: If your bed frame has holes, align the double holes on the bed frame with the double holes on the bed legs and tighten the screws and nuts. If your bed frame doesn't have holes, clamp the bed frame with the bed leg and auxiliary plate, then tighten the screws and nuts