Check the listing for details. [3DMakerWorld] NinjaTek NinjaFlex TPU 3D Printing Filament. Condition: New. Listed at 37.61 USD. Key FeaturesShore Hardness = 85ATruly flexible (no fill or layer manipulation required to achieve performance)Polyurethane composition allows for excellent vibration reduction660% elongation allows for repeated movement and impact without wear or crackingPatented low friction exterior allows for smooth feeding NinjaFlex flexible filament leads the industry thanks to its superior flexibility and longevity compared to non-polyurethane materials. Its consistency in diameter and orality (roundness) outpaces other polyurethane materials. Made from a specially formulated thermoplastic polyurethane (TPU) material, this patented technology boasts a low-tack, easy-to-feed texture. The result is uniquely flexible, strong prints ideal for direct-drive extruders. It's abrasion resistance is 20% better than ABS and 68% better than PLA! NinjaFlex's is chemical resistant to many materials, including naphtha, ASTM Oils #1-3, and petroleum and adheres to all standard build platforms without glue or tape. Suggested applications include Seals, Gaskets, Plugs, Leveling Feet, Protective Applications. PRINTING GUIDELINES: Extruder Temperature: 225degC - 235degC Platform Temperature: Room temperature - 40degC Glue or blue painters tape is suggested if not using a heated bed. Top and bottom layer print speed: 10-20 mm/ sec (600-1200 mm/ min) Infill print speeds: 15-35 mm/ sec (900-2100 mm/ min) Layer 2+ use cooling fan if available.