... its special advantages. 2.U Shape Neck Care Memory Foam Pillow:Physical CharacteristicsDensity(kg/m3) 45Hardness(asker c)40 - 60Tension ... Our products are mainly used in shoes, shoe insoles, pillow, mattress, garment, cases and bags, sport equipments and kinds of cushions, ... knapsack belts etc. 5.Sample photos: U Shape Neck Care Memory Foam Pillow ...