100% Memory Foam with no additives. Can be used to improve bad posture and relieve leg pain while driving or sitting for long periods.Ergonomic streamlining designed to fit to the spine and provide support the tailbone and relieve pressure. Help you maintain a healthy postureBack Cushion comes with 2 adjustable straps that can attach to any office chair or car seat.Breathable & Machine washable mesh cover. Stay safe & healthy!Portable and works for anyone and anywhere: office, couch, car, wood chair, gamers, drivers, students, pregnant women and much more.Dimensions: ‎45 x 34 x 7 cm, 540 GramsColor:Black | Size:Seat (45*34*7)Yalla Office offers a wide range of ergonomically designed chairs and accessories, that are perfect to fit any locations such as home, dorm, reception, conference room, manager & executive office, etc. It is comfortable after long hours of sitting and great for value! Options: Back Cushion: Black, Grey, Blue Seat Cushion: Black, Grey, Blue Key Features: Ergonomic Design: Back cushion is 3D streamlining design to fit to the natural curve of spine. Seat cushion is U shaped ergonomic design recommended by orthopedic surgeons and medical doctors across the globe for treatment of chronic or acute pain by alleviating pressure in strategic areas. Inside Material:100% premium memory foam cushion is made with no additives and specifically targets back pain with its universal curved structure, allowing the cushion to be placed anywhere along the back of a chair or seat for upper, mid, or low back pain relief. Machine Washable: Outside cover is made of breathable Mesh that’s also machine washable. Stay safe and healthy! Back Cushion - Lumbar Support: Ergonomically designed to provide you impeccable lumbar support to make your long sitting hours at home or at work more comfortable.  Back Pain Relief: Discover the ultimate solution for back pain, coccyx, sciatica, and tailbone pain. The memory foam cushion provides comfortable support, improves bad posture, and relieves leg, hip and back pain while sitting for long periods.