... 3)Weight:280g 4)Density:55kg/m3 Item: memory foam pillow for children Provides optimal pressure relief, ergonomically designed to conform ... machine washable for easy care. This kind of memory foam pillow is invented for children, with comfortable feeling and unique design ... , which has good softness and supportness and molds to children's neck and head. The filling is 100% polyeurathane, slow-recovery ...