3d model of oni mask, depending on the material used to be printed and the configurations (infil) it can be very resistant and can be used as a protective mask in airsoft games (I am not responsible for damages). Print with at least 15-20% infill/ Layer Height 0.1 - 0.28 mm.Supports are necessary, this model has been optimized to require the minimum number of supports, the support configuration can be automatic but I recommend put manually, it may be necessary to adjust the shape of the mask to your face (a quick adjustment with the slicer tools and your face measurements solve this), finally the mask must be printed standing up with its 4 lower ends touching the printing table