Features: Its adjustable height can be adjusted from 8"-12" The bed frame"s centre support leg is designed to match different bed heights to protect your bed and mattress from damage or sagging. The support leg is suitable for bed frames, bed centre slats, sofa furniture cabinets and other furniture: T-shaped legs, no holes required, easy to install. When the bed frame has holes, align the brackets directly with the double holes, place the screws to adjust the distance and tighten. When the bed frame does not have holes, use the feet and the bed frame in a cross shape, place the counterpart on the corresponding bracket on the bed frame, clamp the bed frame, put in the screws to adjust the distance and then tighten. Material: Made of aluminium alloy material, electrophoresis black to prevent rusting and corrosion, ensuring a long life and preventing damage to your bed. We have thickened the walls of the tube to make it more load bearing The PVC pads on the bottom of the legs are non-slip and wear resistant and will not hurt and scratch your floor, it has a better grip: 2 height adjustable, from 5.1"-9.6" height adjustable centre support legs, no need for an extra trip to the hardware shop. This design is a cost effective way to maintain the life of your expensive bed base/ slats/ mattress foundation/ platform bed frame/ box spring. The bed frame support legs will hold and evenly distribute the weight of your heavy mattress, effectively protecting your bed and mattress from sagging and damage. Package includes: 2 x Telescopic Furniture Legs [Sand Black] Double Hole - 18cm + 2 x Double Hole Attachment Iron Pieces