This 10 pack of 500g PLA filament is easy to use, non toxic, odorless, and biodegradable. It’s the versatile choice that’s perfect for making a wide range of durable 3D prints in the classroom with your Robo 3D printers. Pack comes with 1 red, 1 orange, 1 yellow, 1 green, 1 blue, 1 purple, 1 white, 1 grey, and 1 black 500g spool of 3D printing material.