Very Comfortable : Perfect For Noon Break At Office Or Outdoor Activities Like Camping, Traveling, Etc. Can Be Used As Back Rest Or Cushion, Comfortably Provides Lower Back Support. How to Fill Air : Press Button Before Fill Air. Press Button For remove Air From Pillow. Quality Material : You can simply deflate, fold and store or take it with you. Made from a waterproof material, it will make you stop worrying when your kids spill drinks on it. Space-Saving Pillow : This space-saving pillow is great for carrying when travelling. You can simply deflate, fold and store or take it with you. Made from a waterproof material, it will make you stop worrying when your kids spill drinks on it. Ultralight Travel Air Pillow : Comfortably supports neck and head to help avoid from tire, cramped neck muscles. Perfect for travel, home, bath or simply relaxation. Can be used as back rest or cushion, comfortably provides lower back support at home or when travelling.