Product features: [fluffy lasting uncrushed] [] [open zipper height adjustable 100% polyester fiber filler] [star hotel comfort] [cotton downproof fabric] [1.5] high resilience national shipping 1.8 2 four sets can be used: “ on a pillow inner support the neck pillow, ” “ pillow pillow neck protecting pillow, ” “ a &rdquo of cotton pillow pillow pillow;