1. made of sponge material, soft and comfortable to wear 2. the mask cushion fabric has a good anti-allergy effect, providing a more comfortable wearing feeling for FPV glasses 3. comfortable and easy to use, anti-light leakage effect, easy to install and replace 4. When installing, please start from the nose bridge position, and then install the mask around it, to achieve better using effect by constantly adjusting. Cautions: 1. Please install the sponge cushion at the nose position of the aviator glasses first, then install the sponge cushion around the rim, and by adjusting the position of the sponge cushion, in order to achieve a better effect of light leakage and not to obstruct the nose breathing 2. The mask will have creases after folding, but this does not affect its use 3. Due to the different face shapes of different people when using the mask, there may be light leakage at the edges when using the mask, please adjust the fit of the sponge cushion before using it to achieve a better effect of using the mask 4. Avoid soaking the sponge cushion in water, so as not to affect the service life of the sponge cushion. Colour:Dark Gray Material:sponge Package Contents: 1 Eye Mask kit 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 picture a little different from the real thing. The measurement allowed error is 1-3cm.