Features: Adjustable bed risers with anti shake design offer 4 height customization for perfect mattress alignment and enhances stability in any bedroom setups . Crafted from durable metal with not slip rubber pads, these furniture leg extenders prevent floor scratches while supporting heavy bed frames effortlessly. Ideal for renters, interior designers, and homeowners seeking flexible solution to optimize furniture height for different mattress thicknesses or decors styles. Securely elevates bed frames in dormitories, guest rooms, or studio apartments while maintaining floor protection and noise reduction during daily use. Achieve professional level furniture adjustment without tool these universal Bed Frames support work seamlessly with platform bed , futons, and sofa bases. Specifications: Component : metal Height: about 67mm-87mm/3in to 3.4inch Package Includes: 4pcs Height Boosters note: Please allow 1 to 3cm error due to manual measurement, please make sure you do not mind before you bid, Due to the difference between different monitors, the picture may not reflect the actual color of the item.