The Ezer-Up Extended Chair and Sofa Riser are hand-assembled furniture risers that make it easier for people with low furniture to stand up and sit down by providing an extra 3 inches of lift. The non-slip risers are durable and can adjust to fit furniture up to 40 inches wide. Ezer-Up Extended Chair and Sofa Risers solve the problem caused by furniture that is too low and too difficult to stand up from or sit down on. When sitting with your knees higher that your hips, pain, discomfort, and increased difficulty when standing can occur. These furniture risers can be installed easily and will help alleviate the pain and inconvenience caused by furniture that is too low. The wing nut turns easily, allowing the risers to adjust from 28 to 40 inches long to fit different furniture legs. For increased safety and support, the risers contain steel reinforcements. The 4 x 4 inches riser tops will accommodate a variety of leg shapes and sizes. In order to keep the furniture feet from slipping, there are non-slip gripping pads on the tops. The bottoms of the risers are also textured, which will keep the risers from slipping and will not damage the floor. Please note: Ezer-Ups are not recommended for use with recliners, rockers, swivel chairs or sectionals. Ezer-Ups are stationary and do not move after installation. Ezer-Up Extended Chair and Sofa Riser Specifications: Elevates furniture: 3 inches. Weight limit: 420 pounds per leg, 1680 pounds per set. Fits: Furniture up to 40 inches wide including sofas, loveseats, chairs. Not recommended for recliners, rockers, swivel chairs or sectionals. Base Measures: 5 inches wide, 29 inches long extends to 40 inches long. Includes: One pair of adjustable risers, installation instructions. Materials: ABS plastic, steel core. Made in: USA.