New, unopened product. This is a set of 2 TITIROBA gel cushions. Size: Approximately 41x36x3.5cm [Caution] A mold release agent is used when applying the non-slip treatment to the cover. Please be aware that color transfer to other items may occur very rarely depending on the usage environment or friction. Especially white chairs are to be avoided. If you are concerned, please wash the cover once and then test it on a flat surface before use. Hand wash for the first wash. [Evolved Double Design & Cushioning] The second-generation gel cushion is very durable and has good flexibility and durability. Approximately 500 honeycomb cells and a double design help maintain good posture. Reversible. [Pressure Distribution, Comfortable for Long Hours of Sitting] Ergonomic design. The gel material and honeycomb structure distribute body pressure, so it may not break even if you sit on a raw egg. Moderate firmness evenly absorbs and distributes body pressure. [Guides to Correct Posture] A cushion that guides you to the correct posture, naturally leading to a comfortable posture with a straight back when you sit. [Good Breathability and Durability, and Doesn't Get Stuffy] It returns to its original shape immediately even if you crush and squeeze it, and has good resilience. Perfect for measures against the heat of summer. The double honeycomb structure also provides good breathability, making it a type that doesn't get stuffy even during long hours of sitting work. [Four Washable Cushion Covers Included] Two summer covers and two winter covers are included. The covers are easily removable and washable, keeping them clean at all times. Non-slip on the back of the cover, making it difficult to slip. [Suitable for Gifts] Can be used in various places such as home, chairs, offices, driver's seats, wheelchairs, and dining chairs. Applicable to those who do a lot of desk work or long-distance driving, office workers, students preparing for exams, pregnant/postpartum women, and the elderly. [Double Cushioning by Stacking Two] Using two stacked together doubles the cushioning, elasticity, and weightlessness, and greatly increases the comfort of sitting and tension. [Amazon.co.jp Exclusive] [Recommended by a Judo Seifuku Therapist at a Chiropractic Clinic] TITIROBA Gel Cushion, Zero Gravity Cushion, Seat Cushion, Cooling, Honeycomb Structure, Breathable, Work from Home, Office, Car, Chair, Home Use, Washable, Two Covers, Set of Two ZD-04 Color...Black Pattern...Plain Taste...Modern Filling...Other