Liliany Bamboo Charcoal Breathable Car Seat and Office Chair Cushion Pad Mat Black Bamboo Charcoal Seat Cushion Charcoal cushion can effectively control the temperature, adjust the humidity,Health Keeper, useful to relieve fatigue, quicken metabolism and prevent bacteria Backside skidproof design for more safe driving,Charcoal is a pure natural product and it is non-toxic, tasteless, no side effects Suitable for drivers and office uses Size: 42.5*42.5cm (17 * 17 inch)