Slow rebound butterfly pillowProduct Name: Memory Cotton Butterfly Gel Pillow Inner material: jersey Product specifications: 50*30* 10 7CM Jacket material: bird eye fabric Tips: 1. The inner core of the memory cotton should not be washed, and it should not be exposed to the sun. In normal maintenance, the inner core can be kept in a cool and ventilated place. 2. The inner sleeve is not removable and can be removed for cleaning. 3. The product specification is manual measurement,