A Set of Different Colors--Our pack of filament comes in 10 various colors to scribble your 3 Dimensional artistic masterpiece idea, which makes this product a great material for low temperature 3 Dimensional pen to create colorful projects. A great gift set for your kids and art lover to have fun with crafting and drawing Green Material--It is made from food grade PCL, a biodegradable material, which is green and environmentally friendly, our filaments are made to the highest of standards and it's consistency of round diameter leads to optimum through the extruder tube and nozzle Applicable Object--It can be used for most of the 3 Dimensional printing pens where excellent detailing and application requirements are needed. Because of the color classification, it makes the 3 Dimensional pen more useful in crafting the product of your own choices. Free-Dimensional's 3 Dimensional Pen Refill Kit delivers the highest quality, is ideal for nearly every 1.75 mm with tolerance of +/-0.02m 3 Dimensional pen and printer on the market Suitable Temperature--This filament is applicable to Low Temperature 3 Dimensional pen only, with its optimum printing temperature ranging from 80℃ to 100℃. It is reusable: in 50℃ boiled water, it can be changed into a substance like plasticine, thus can be reshaped Perfect 3 Dimensional Art Choice--Put down those tablets and start creating memories together! Unleash your children's imagination and challenge their minds in new ways as they build in Create 3 Dimensional art for hours without the headache! Your 3 Dimensional art is special and unique, and that's why your creations make the perfect gift to friends and family