The Surf Cushion is designed to fit your favorite portable work desk, The Surf by ECR4Kids (ELR-15810, sold separately). The Surf Cushion offers 1.5 inches of soft but firm foam to support to create a comfortable place to sit, no matter where you choose to work with your portable Surf Desk. The built-in non-slip sleeve is designed to fit onto any ECR4Kids Surf Desk by simply and easily sliding the cushion on to the seat pan. The cushion easy to clean, simply wipe clean with a soft towel and mild soap and water solution. Spot clean as needed, do not rub or use abrasive cleaners; allow to air dry completely before next use. The Surf Cushion measures 14.5" L x 12" W x 1.5" H and weighs 0.4 lbs. The Surf Cushion is PVC free, GREENGUARD [GOLD] Certified for healthier indoor air, CPSIA lead and phthalate compliant and adheres to CA-117 and California (AB 2998) requirements for fire retardancy. Constructed with certified flexible polyurethane foams that meet CertiPUR-US program standards. We adhere to strict safety regulations to ensure your child’s well-being. ECR4Kids is committed to enhancing education in the classroom and at home. We specialize in a wide range of high-quality educational furniture and supplies. We’re your partner for pre-K and beyond.