Perfect for Slim-Leg Furniture: This bed riser features a square design with a 2-inch + 1-inch stack, adding a total height of 3 inches. It is suitable for round-bottom furniture/appliances with a diameter of less than 2.75 inches (6.98 cm); square-bottom legs with a length of less than 2.75 x 2.75 inches (6.98 x 6.98 cm). Such as beds, sofas, washing machines, coffee tables, desks, cabinets, chairs, and refrigerators. Flexible and Adjustable: This set includes 4 upper and 4 lower bed risers. Stack the upper and lower layers to achieve higher support, increasing the height by 7.6 cm (3 inches). The use is flexible; they can be used in stacked combinations or individually, allowing you to use them as needed. Cup Design and Non-Slip: The bed legs are securely mounted in the square cup of the bed post, with a depth of 0.72 inches (1.8 cm), effectively preventing lateral sliding of furniture. The 3-inch bed riser bottom features a TPU non-slip rubber design, protecting the floor from scratches, reducing vibration, and noise. Premium Materials: The bed risers are made of high-quality ABS plastic and non-slip rubber, stable and strong in load-bearing capacity. Each set of bed frames can support heavy furniture weighing up to 6000 pounds, stable, with no need to worry about furniture shaking. Provides a more comfortable sleeping environment. Comfortable Living: The bed lift not only provides you with more storage space under the bed but also helps improve sleep or relieve back pain. It helps to easily change the height of large furniture and also helps people with mobility issues to easily get up from the bed or sofa.