○ Low-Resilience Cushion for Chairs This U-shaped pelvic correction cushion made of mesh material improves sitting posture. Size: (approx.) 38cm (length) x 45cm (width) x 2.5-11cm (thickness) Materials: Filling: Polyurethane (high-quality low-resilience urethane) Cover: Surface/100% Polyester (breathable mesh material) Back: PVC material (with anti-slip and anti-stick particles) The cover can be removed and washed (with a zipper). ○ Back Support Cushion For relief of lower back pain. Size: (approx.) 44cm (width) x 23cm (length) x 4-7cm (height) Materials: Same as above. Buckle fastening (belt is 60cm on one side). Suitable for a kei-car (Japanese light car). It can also be used for racing chairs for e-sports, etc. Please check the size in relation to your seat before purchasing. Returns due to size differences are not accepted. The condition is good. I have no use for it, so I would be happy if someone could make use of it. #IKSTAR #LowResilienceCushion #ForChairs #OfficeUse #Black #LowerBackPain #Hernia #eSports #KeiCar If you wish to purchase separately, I will consider price negotiations. Please comment. I am also listing on other sites. If it sells there first, I will delete this listing. Thank you for your understanding.