Thank you for viewing! This blue gel cushion with a honeycomb structure and cover provides comfortable seating. It can improve concentration during long hours of desk work or studying for exams. Also suitable for preventing back pain, bedsores, and pressure ulcers. 【Size】 Approximately 38cm x 32cm x 3cm *Please note that there may be slight variations from the actual size due to manual measurements. 【Other】 As this is an imported product, the quality may be slightly inferior to that of Japanese-made products, but it is offered at an affordable price. If there are any defects, please let us know before leaving a review. #welcome sanchan store