All Filaments have different properties such as strength & flexibility. We will put each Filament information below .
PLA: Polylactic Acid is a renewable thermoplastic that is made out of Corn, sugarcanes and more. PLA is eco-friendly and is biodegradable. PLA has a low to no warping making 3D prints more accuracy and easier to be printed faster.
TPU Flexible: Thermoplastic Polyurethane is a soft rubber filament that is excellent in strength, extreme temperatures, impact & flexibility. TPU has the ability to return to it's shape after it has been bend. TPU can absorb shocks and maintain it's shape after drops. TPU is common in automotive, rubber mats, trains, planes & much more.