Adjustable Height: The adjustable height range is 15cm, so you can lower it up to 18cm, and by rotating it to adjust the height to the maximum height of 33cm. Easy to Install: Very simple physical structure, if the bed slats have holes, just insert them directly through the holes. If there is no hole, use the fixing plate with screws to install it, and choose the installation method according to whether the bed slats have holes. It comes with the function of rotating and adjusting the height, and the feet can be rotated to adjust the height to support the bed slats. Very simple to install and use. Replace Furniture Legs: Made of aluminum alloy, electrophoresis paint to prevent rust and corrosion, ensuring a long service life and avoiding damage to your bed. We have thickened the pipe wall to make it more load-bearing. The PVC pad is non-slip and wear-resistant, will not be damaged or scratch your floors and it has better grip. Widely Uses: The design is a cost-effective way to maintain the stability of your expensive bed base, wooden slats, mattress base, 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. You save money on bed frames and mattresses. Package Contents: The bed support legs include: 4 furniture legs, 8 screws, 8 nuts and 4 mounting plates. If you find that the product is damaged or missing, please contact us in time to provide you with after-sales services.