Good Mechanical and Thermal Properties: Available in over 12 colors and effects for your everyday creations, PolyLite PETG is designed for unique inventions and strong gadgets. PETG offers a heat resistance of 80C (144F) and greater toughness than regular PLA. Tangle-Free & Moisture-Free: PolyLite PETG filament is meticulously wound to prevent tangling, dried, and vacuum-sealed in a resealable ziplock bag with a desiccant. Always hold the tip of the filament to avoid nodes, and use the holes on the side of the spool to help prevent tangling.