Breathable Elastic: This gel pad is latest generation, upgraded in size and structure, larger and thicker than other gel pads in the market. Thanks to the hollow structure and the elastic gel material, the gel seat cushion provides comfortable support while allowing air circulation from seat to seat SOFT AND COMFORTABLE: High quality gel chair cushion with double layer structure, weighing about 800 grams. It is heavy and solid, yet soft and comfortable to the touch. Comes with a zippered non-slip cover for easy cleaning Stress Relief: Gel pads help relieve pressure on the sciatic nerve, relieving tailbone and leg pain. Also suitable for people with back problems or who need to use a wheelchair SIZE AND THICKNESS: Measuring 39x34x3.38cm, this gel cushion is larger and thicker than many other gel cushions on the market. It is universal and perfect for your office chair, kitchen chair, car seat or wheelchair Sit better and stay healthy: With this soft and stretchy chair cushion, you will never have to sit down, and you will never feel pain while sitting down. Especially for those who have to sit every day, this cushion provides the most intimate protection and is beneficial to their health.