The product is good quality, it is a plastic that supports a cleaning sponge, it is thick enough to be comfortable and prevent a shock in the event the child falls backwards through the was sitting down. It is quite curved to stabilize the child in the middle without Letre developed dempêcher use on the side edge position for washing a nose or ear cleaning. Only the price is a little high, but its daily use and well thought form warrants. In short I recommend this mattress. Delivery: RAS Packing: RAS