Thank you for viewing from among many options!! [Online Retail Price] 4,280 yen [Color] Blue Size (approx.): 41 x 36 x 3.5 cm *Please note: If the cover has a non-slip treatment, a mold release agent is used. Depending on the usage environment and friction, color may occasionally transfer to other items. Please be especially careful with white chairs. If you are concerned, please wash the cover once and test it on a board before use. Hand wash only. [Advanced Dual-Layer Design/Cushioning] This second-generation gel cushion is extremely sturdy, flexible, and durable. With approximately 500 honeycomb pieces and a dual-layer design, it helps maintain good posture. It can be used on both sides. [Ergonomic Design] It distributes body pressure, allowing you to sit comfortably for long periods. The gel material and honeycomb structure disperse body pressure, so depending on how you sit, you can place a raw egg on the cushion and sit on it without breaking the egg. It achieves a comfortable sitting experience. It has moderate firmness and evenly absorbs and distributes body pressure. [Guides You to Correct Posture] The cushion guides you to the correct posture, and sitting on it naturally straightens your back, resulting in a comfortable posture. [Breathability, Durability, and Mold Resistance] It has good resilience even when kneaded and quickly returns to its original shape. It is also ideal for the heat of midsummer. The double honeycomb structure provides excellent breathability and is resistant to mold even when sitting for long periods. [Includes 4 Washable Cushion Covers] It comes with two summer covers and two winter covers. The covers are easily removable and washable, keeping them clean. The back of the covers has a non-slip treatment to prevent slipping. *This product does not come with a box and will be packaged for shipping.