MADE OF PLASTIC - The plastic empty bottles are made of high quality PET plastic, which can be reused. It is recyclable and eco-friendly. The bottle does not contain BPA. Without any peculiar smell. Food grade material is healthy for you. LEAK-PROOF DESIGN - The plastic travel bottle is equipped with a flip cap to securely lock the liquid in the bottle. You don't have to worry about liquid leakage. The plastic empty bottle is empty and you can refill it. The 30ml spray bottle is small and easy to carry. EASY TO USE - The 30ml clear plastic empty bottle is easy to use. Simply tilt it and the liquid will flow out automatically. Transparent empty bottles show the true color of their contents. As a result, you can easily identify the content for quick selection. Or you can put a label on the bottle. WIDELY APPLICABLE - The portable refillable containers can be used to fill shampoo, lotion, liquid body soap, cream, toner, or other liquids such as cleansers and air fresheners. It is a must-have accessory for people who pay attention to skin care when traveling.