Our silicone is skin-friendly, non-toxic, non-allergic, the soft and elastic material help the mask to be automatically fit on different people. Specifications: Material: Food grade silicone Color: Ivory White(#1), Light Beige(#2), Tan(#3) If you are not sure which size will fit you best, please send us message about your measurements as follow: 1: Your head circumference and head height 2: Eye width and buttonhole spacing 3:Neck circumference We will recommend a suitable size for you after receive above information from you. Maintain tips: 1. Keep away from hot temperature, sunshine, sharp pointy things, washing machine, chemical material, don't use nails or sharp items to scratch it. 2. Clean it in lukewarm water with mild soap, air-dry or use a towel gently. This product is easy dyeing, so don't clean the product with other clothes. 3. Handmade by our professional, there may be a deviation of 1-3cm, and normally, we need 3-5 days to prepare it. 4. All of our items are new from factory, it's normal that some of them may have a little smells, it will disappear soon. 5. The pictures are for reference, the effect will not be the same with different people, if you are not satisfied with the head mask, please contact us, we can help you solve the problem! 6. No glue required, the products do not include clothes, wigs, eyelashes, glasses and other accessories.