Non-toxic and eco-friendly, safer for children. PLA is an organic biol material that is refined from Ma Z and grain. Odorless, non-toxic, premium material for trouble-free printing, almost jam-free and filaments flow evenly. No unpleasant smell and safe for you. 16 colors, 5m each color, 16 different colors PLA filament to doodle your idea of 3D art stica masterpiece. A great gift set for your kids and art lovers who have fun with crafting and drawing. We offer you options for your creative adventure. A perfect gift for you to have fun creating 3D works of art. (Please note: the colors are random, the product image is only for reference) Good performance: compatible with the larger than normal temperature 1.75mm 3D nibs in the market (accuracy dimensional +/- 0.05 mm). Keeps your 3D print very soft and light. Make sure your 3D pen or printer can use 1.75mm diameter PLA filament refills. Strong Compatibility: Can be used for the largest of 3D prints where great details and requirements application are required. Due to the color classification, the 3D pen is an indispensable tool to create the product of your own choices. Delivers optimal flow through the nozzle for a trouble-free printing experience. Easy to use for adults and adults. A great gift for kids/adults. No matter any festival like birthdays or Christmas, any DIY, arts and crafts, school and fun creative projects, use the printing filament to create a gift for your kids and friends.