1. silicone protective cover for the mask, wear-resistant and dirt-resistant, to protect the contact surface of the face of the flight glasses from sweat/oil/cosmetic erosion. 2. soft silicone, surface oil spray treatment, and comfortable touch, experience a different flight journey. 3. easy to replace, easy to clean, convenient and hygienic. 4. real machine open mold, fit the mask to prevent light leakage, as if the machine as comfortable to wear. Applicable models: for Avata Goggles 2 Colour:red :Silica gel Size:18 x 9.5 x 4cm Package Contents: 1 x Flight glasses mask pad Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.