Environmental protection and safety: PCL is a biological material refined from corn and grains. There is no unpleasant smell, nontoxic, temperature is 70℃100℃, low temperature is not hot, suitable for children, printing is smoother and will not Highquality materials: PCL lowtemperature printing pen consumables have high purity, 100% nondoped recycled materials, to ensure that the printing is not blocked, and the color has no color difference stable melting point, ensuring smooth pri Provide 20 different colors: 20 colors of PCL filaments, you can create different toys for you Increase the joy of life with your children. Widely compatible: Strong compatibility, wide application, universal design of wire refill, compatible with 3D printer using 1.75mm diameter wire, dimensional accuracy is +/ 0.02mm. PCL can also print at higher throughput speeds. It can be used Perfect gift: Use with a 3D printing pen to give you a new way of drawing, help children improve their spatial thinking, and a good tool for parents and children to spend happy time together. It is also a perfect gift for children.