Made with 5-7 oz. leather. Industrial strength rivets. Impressions of gears and such can be seen throughout the piece. Heavy duty buckles and straps on the back so you can wear this awesome piece or you can just hang it on the wall. Makes a great 3 dimensional art piece. Order a few! Each one is made to order and therefore a one of a kind. You will not get the exact one pictured. Please allow several days to make and ship. Approximately 10" long. LED eyes can easily be turned on or off and each runs on two replaceable 3V (watch)batteries. First set of batteries are included. Visibility is limited but you can see out of the mask. Lens color may vary. Top color can also be made copper or gold instead of the silver shown. We do custom masks too. Please let me know if you have any questions.