Polypropylene Imported Maximize Under-Bed Space - Enjoy added storage for your dorm or small room with adjustable bed risers! This 8-piece bed height extender set fits twin, twin XL, full, queen, king, and Cal king beds. Heightened Comfort - Raise your bed's height with our bed lifter set to make getting out of bed a more pleasant experience! Or, use the furniture lifts as table risers so you're more comfortable while working. Customizable to Your Needs - The sofa riser set includes 4 small (3") and 4 large (5") chair risers. Use the couch leg risers on their own or stack them up to elevate a sofa or chair by up to 8". Stable & Durable - The heavy-duty couch risers are made of polypropylene plastic, supporting up to 1300 lbs. of total weight. The broad base isn't just stable, it also won't scratch/dent your floors. Easy-Install, Space-Saving Bed Elevators - You can put these bed frame lifters under furniture legs in mere minutes. Stackable by design, our table leg extender/bed leg extender set is easy to store.