ALL DAY SUPPORT & NEVER GO FLAT: Made with Hyperfoam, our extra dense, dynamically rebounding, proprietary memory foam for all-day support. CertiPUR-US memory foam is a more reassuring choice. 3D FULL WRAP SEAT CUSHION FOR EFFECTIVE TAIBONE PAIN RELIEF: The wrapping design of the seat cushion cradles your bottom, reducing pain in your lower back, hips, and sciatic nerve during long-lasting sitting. The wide thigh rest area allows the thighs to get enough support while satisfying the flexibility of the legs. MULTI-REGION BACK SUPPORT FOR BACK PAIN RELIEF: Our lumbar support pillow provides firm sectional lower, mid, & upper mid-back support to jointly keep your back & spine in ideal posture, reducing strain on your back muscles. Specially contoured to fit organically to relieve lower back pressure for office workers, drivers, or anyone who sit for 8+ hours & experience back pain. MULTIFUNCTIONAL MINI LUMBAR PILLOW: Specially matched with a mini lumbar pillow, which is slightly firm & the height can be freely adjusted to provide additional support for your lower back or neck. Of course, it is also a perfect choice to use it alone as a car headrest. ADJUSTABLE ATRAPS & ANTI SLIP PARTICLES: Dual adjustable straps strap the lumbar pillow down all types of chair more stably. The chair cushion is specially upgraded with elastic strap also, plus the anti slip particles at the bottom, never worry about sliding when moving seat or getting up any more.. ENJOY COMFORTABLE SITTING ANYWHERE, RISK-FREE: Our 3 piece cushion set can be used together or separately in different occasions. Mini lumbar pillow can be freely adjusted to provide additional support for your lower back or neck. Of course, it is also a perfect choice to use it alone as a car headrest. Both the seat cushion & back cushion are designed with adjustable elastic straps for straping down all types of chair more stably. Never worry about the cushion sliding when moving seat or getting up any more Removable cover help your chair stays fresh & clean - If you want to freshen up your office chair cushion, simply remove the cover and toss in the washing machine, then tumble dry What Makes KingPavonini Cushion Set Special: Just Stay in Place - Dual adjustable straps strap the lumbar pillow down all types of chair more stably. The chair cushion is upgraded with elastic strap also, plus the anti slip particles at the bottom, never worry about sliding when moving seat or getting up any more Will Never Lose Its Shape - The cushion pad's CertiPUR-US memory foam is slow rebounding, always regaining its shape after each use. Sit on our memory foam chair pillow day in and day out and never worry about it flattening Perfect Balance of Firmness & Comfort - Our office chair cushion is a perfect mix of firmness and comfort. However, please allow yourself 1-3 weeks to adapt to it