Size:36*30*12cm ADJUSTABLE STRAP - If it doesnt fit your seat, move the slider buckle towards the click buckle. An adjustable chair strap built in to this lumbar cushion makes installation a simple, one-step process. Dont worry about the cushion quickly slipping out of place - even over the roughest of terrain, this strap can keep the cushion at the exact angle and height needed. The strap is a universal fit, with the ability to adjust the length as needed, no matter where you need to sit with a lumbar support cushion. SUPPORTIVE - Our lumbar support pillow could help alleviate the discomfort associated with lower back soreness, injury, chronic condition, or simply add a little more support for those who sit for long periods at work or drive hours-long distances. Its ergonomic design, high-grade memory foam , and firm support are all designed to gently hold you in the correct position, alleviating pressure and stress on this sensitive area of the body. HIGH-GRADE MEMORY FOAM - Firm yet comfortable, the pillows supportive memory foam holds your lower back in the right posture. Unlike other traditional pillows or cushions that slip and fall out of place or with insides that move around, the memory foam stays put, cradling both sides of your spine without feeling rock-hard. The memory foam is ideal for all-day use, whether driving in the car, sitting at your desk, traveling on a plane, or simply hanging out at home. ERGONOMIC DESIGN - Lumbar Support Back Pillow follows the curve of your body, for a comfortable hold that fits and feels natural. The ergonomic design gently guides your body into a position which helps to reduce strain on your lower back. The pillows ability to improve your poster also encourages circulation, which helps to further relieve pressure or pain experienced in your lower back. Its well-padded with memory foam, too, for comfortable day-long use. VERSATILE INSTALLATION - This back pillow goes wherever you need extra lumbar support. It can be installed quickly with the easy-to-use and adjustable one-clip belt. Simply wrap the straps around the back of whatever seat youre in and click the strap closed. Disassembly is just as easy. Samsonites Lumbar Support Back Pillow is lightweight, too, ideal for easy transport. Bring it with you to work, take it with you while traveling in a plane or a rental car, or move it around at home.