inflatable mattress OL--M066 product size :195/161*66*3cm color:grey good sponge , excellent quality with competitive price Name:Inflatable mattressItem No ... automatically inflating by the easy-open, easy-close valve.this inflatable mattress can be rolled up or folded and carried or stored ... can help you reduce the body heat loss, prevent cold air intrusion. So it is ideal for backing, camping and ...