Buy with Confidence: With Monoprice's Lifetime Warranty on all Cables, you can rest assured we stand behind our products and our customers.This sample pack includes six (6) 20-foot strands of eMate filament in the following colors: Natural | Red | Yellow | Blue | Green | BlackeMate is a low-temperature (70 ~ 100C) filament, which is perfect for use by children using the MP Select 3D Printing Pen.Quality at a Fair Price: Monoprice's rugged design and rigid quality control standards deliver high quality products at fair prices.Service & Support : You're never on your own with Monoprice products! We have a full team of friendly and knowledgeable technicians available to answer your questions, both before and after the sale.