This Prusament bundle includes: Prusament PVB Natural Transparent 500g Prusament PVB Light Yellow Transparent 500g Prusament PVB Prusa Orange Transparent 500g Prusament PVB Dark Blue Transparent 500g Prusament PVB Bright Green Transparent 500g Prusament PVB Smoky Black Transparent 500g What can you expect? Prusament PVB is our own in-house made filament. The whole manufacturing process is closely monitored and tested - we guarantee ±0.03mm precision and highly-consistent colors. You can inspect the parameters of every spool we made at prusament.com. Check the sample spool ! Manufactured In-House By Josef Prusa We were not satisfied with the quality of filaments on the market. So we decided to make our own! Prusa Research is the only 3D printer manufacturer with its own filament production. Premium-Grade Materials And Thorough Testing The whole manufacturing process is closely monitored and tested – string diameter, color consistency, and mechanical properties – to make sure that every spool is perfect. ± 0.03 mm Manufacturing Guaranteed Precision We believe the industry standard of 0.05 mm isn’t sufficient for perfect 3D printing. Instead, we guarantee ±0.03mm precision and highly-consistent colors in our filaments. High Quality You Can Check Yourself We are the only manufacturer that gives the option to inspect parameters of every filament spool. Scan a QR code on the spool to see all details online ( check the sample spool ). Read more about Prusament PVB in the article at PrusaPrinters.org or at Prusament.com ! About PVB Polyvinyl butyral (PVB) is a design material suitable mostly for visual purposes. Thanks to its translucency and easy smoothing with isopropyl alcohol, PVB is great for printing visual models such as unconventional vases, jewelry, lampshades, and other design elements. Its most notable benefit is its easy solubility (in isopropyl alcohol), which allows users to create models with a glass-like finish. Combining translucency and