Comfort and strength - High density foam inside (does not sag over time). Easy to clean - the vinyl cover can be cleaned, either with a soft cloth or sponge and cold soapy water or with our cleaning product. No risk of injury - made entirely of foam and covered with vinyl. The combination of foam and vinyl cover is safe and prevents all kinds of injury in case of sudden impact. M2 fire retardant fabric. Phthalate free. Seat Height 7.25. Each measures 19.25"L x 17"W x 18.50"H.