Safety valve prevents air leakage. 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. This space-saving pillow is great for carrying when travelling with kids. Soft velvet flocked finish. Air lock facility Comfortable I-Beam Construction. Small and easy to travel. Easy To Inflate And Deflate : Simply Open The Top Portion Of The Double-Decked Air Valve And Blow Air Into It, Only 3-5 Breaths. Open The Bottom Of The Valve To Deflate, Only In Seconds. 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. Read Less