PETG (Polyethylene terephthalate glycol-modified; Eastman Chemical, SK Chemicals Selenis are some PETG manufacturers) filament is an extra tough 3D print material. This is an extremely high strength filament and can achieve very sturdy and strong prints. It has very low shrinkage, making this perfect for larger flat surfaces.
PETG is the perfect filament to combine strength and ductility, which is why it’s used in so many mechanical parts and robotics. It has great chemical resistance with good water, acidic and alkali resistance. PETG is also making a great material for artistic prints like a bracelet, rings, collars etc. You can achieve a nice shiny transparent/see-thru look which reflects the light nicely.