Commercial license: you can print and sell this model, available in 3 sizes adult size, kid size and pet size, make sure it fits your head size if not measure and scale the model before printing, The model can be printed in multi-colour (3 colours) by changing filament/resin as the text is extruded a bit more than band, You can also print it in one go / each letter with each colour. The design is very comfortable and safe, no sharp edges on head and sides no supports needed ironing on extensions- post processing - add a script- filament change- choose desired layer height monotonic ironing -on Bed adhesion use tabs for easy tearing.