?Function?FOROIRON dorm bed riser is designed to raise the college dorm square wooden bed frame to provide more space to store the suitcase, shoe box, clothes organizer and other items under your bed. This metal square bed riser adjusts to 3.2" or 5.1" Height, Provide 4 kinds of height to make an option ?High-Quality Metal Bed Riser?These metal bed risers made of premium carbon steel, four bed risers maximum loading capacity: 9000 lbs; The powder-coated surface, which has excellent rust-free and wear-resistant features, Sturdy and durable, much better than plastic, cheap bed risers ?Anti-slip Plastic Bottom & Stainless steel Clevis Pin?Each tall bed riser bottom attaches anti-slip plastic bottom pad to avoid scratching the floor and reduce noise when you move the bed. The Clevis Pin is much better to support heavy things but not deform ?Widely Usage?Our college bed riser is suitable for raising table legs, furniture legs, wooden bed frames, and desks. providing a comfortable height for dorm wooden bed frame and home furniture ?Installation? Step1: Choose the suitable height you want. Step 2:Insert the clevis pin and lock up. Step 3: Install the bed riser or furniture leg into the square bed riser. Step 4: Use 4 adjustable screws to tighten up the bed leg ?NOTE?The white metal bed riser diameter is 2.3 inch, please make sure your bed leg or table leg diameter not over 2.3 inch before purchasing