Features: 1. 100% brand new and super high quality. 2. Made of silicone material, comfortable and breathable. 3. Easy to wear and simple to operate. 4. Multi-venting hole design: quiet and safe during treatment. 5. It is suitable for connecting PVC anesthesia masks, silicone masks, and non-invasive breathing anesthesia masks for fixing and binding. Specification: Material: silicone Color:As the picture show Size:As the picture show(1inch = 2.54cm) Package Includes: 1 x Respirator Mask Headband Note: 1.Due to the different monitor and light effect, the actual color of the item might be slightly different from the color which is showed on the pictures. 2.Please forgive 1 cm/0.39"-3 cm/1.18" measuring deviation due to manual measurement.