[Leak proof travel bottle: It adopts three-layer leak proof design which can prevent liquid leakage or overflow and is firmly sealed to provide protection for your luggage and clothing without causing confusion. And help you squeeze to the last drop easily. TSA carry on approval: 4 pack 3.3 oz silicone travel bottles very suitable for shampoo conditioner shower gel lotion hand sanitizer and shower gel. It is equipped with a high-quality zipper transparent wash bag which saves space and allows you to travel long distance freely like a professional. Food Grade BPA Free Silicone Designed: food grade BPA Free silicone bottles are safe to use they are sturdy durable also very flexible eco-friendly travel bottles set is good to our enviroment; It provides you a better user experience. Wide opening design: our refillable travel bottles has a large opening which can be easily filled with shampoo conditioner or lotion and used also it easily fits a brush to clean the inside of the tubes. No-drip valve: The cover is distributed through a small intersection which can prevent leakage and confusion during the journey and ensure that you always distribute the correct amount.]