Feature:1. Versatile: This multifunctional seatback set is suitable for a variety of scenarios, including office, home, gaming and long car rides. Its upgraded features meet the needs of different environments and uses.2. Adjustable Memory Foam Seat and Backrest: The seat and backrest are made of premium memory foam for superior comfort and support. Its adjustable design allows you to customize your seating position to your liking, ensuring a comfortable experience even after long hours of sitting.3. Sturdy and Easy to Clean: This chair back support set is made of premium materials for durability. The removable and washable design of the memory foam cushion ensures quick and easy maintenance. Simply remove the seat cover and wash it in the washing machine for a clean seating experience.4. Suitable for Multiple Scenarios: Whether you are working at your desk, relaxing at home, playing an intense game, or embarking on a long trip, this multifunctional chair back cushion set is the ideal companion for you.5. Ergonomic Design: The ergonomic design and adjustable function of the lumbar cushion backrest cushion ensures optimal comfort and support, which can enhance your overall health and bring you a comfortable experience in any environment.Specification:Item Type: Seat Lumbar Back Support CushionBack cushion size: Approx. 40 x 40 x 8cm / 15.75 x 15.75 x 3.15inSeat cushion size: Approx. 41 x 32 x 8cm / 16.1 x 12.6 x 3.1inMaterial: Polyester FiberCore Material: Polyurethane.Package List:1 x Lumbar Support1 x Seat Cushion