Juuwan Memory Foam Seat Cushion for Office Chair Pressure Relief Sciatica & Tailbone Pain Relief Memory Foam Coccyx Cushion for Long Sitting, for Home Chair, Gaming and Car Seat CushionBrand: Juuwan Color: Black Features: Patented Ergonomic Design for ComfortOur memory foam seat cushion is patented design which can enhance your posture and cradle your thighs and hips. The seat cushion will provide comfort during long periods of sitting. Premium Memory FoamJUUWAN seat cushion for desk chair is made of high density memory foam and features breathable black mesh cloth. The office chair cushion is certified by CertiPUR US and approved