Commercial license: You can print and sell this model, Sharing or selling digital files is prohibited. The Alien mask eyes have hexagon grid holes where one can see clearly and two oval holes are provided on the back where an elastic/ velcro can be placed, you can also use a rubber band / old face mask's ear elastic for it, anything works. Two holes also provided at nose for easy breathing. The mask is Unisex and can be scaled form adult to kid size and can used for Halloween, fun and wall art. Multicolour Files are also available for K2, K2pro, K2 Plus and Hi. Patreon: https://www.patreon.com/posts/alien-mask-for-143645228?utm_medium=clipboard_copy&utm_source=copyLink&utm_campaign=postshare_creator&utm_content=join_link Amazon.in: https://www.amazon.in/dp/B0G2GM5HB6 https://www.amazon.in/dp/B0D25MV9H6 Thank you, Have a beautiful day. Regards, Sigma Designers.