Specifications: 1) Materials: 75D polyester and TPU coated, open cell PU foam 2) Valve: plastic Specifications: 1) Materials: 75D polyester and TPU coated, open cell PU foam2) Valve: plastic or copper valve3) Dimensions (L x W x T): 120-180cm x 50cm x 2-4cm Self-Inflatable Air Mattress