Overview: SainSmart TPU filament is renowned for its high strength and flexibility. With the design freedom of 3D printing, SainSmart filament is the key to bringing your project, whether it be a weekend hobby or prototyping for a Fortune 500 company, from the sketchpad to reality. Each spool of SainSmart TPU filament comes with 0.8 kg/1.76 lb of material. This filament is drawn out to a diameter of 1.75 mm with a dimensional accuracy of +/- 0.05 mm, making it the perfect choice for most printers on the market. Specification: Diameter: 1.75 mm Material: Flexible TPU Net Weight: 0.8 kg Shore Hardness: 95 A Recommended Printer Settings Print Nozzle: 0.4 - 0.8 mm Extruder Temperature: 195 - 230°C Print Bed Temperature: 40 - 60°C Cooling Fan: On Printing Tips For Bowden Drive Printers Print Slower: 15 - 30 m/s First Layer Settings: 100% Height. 150% Width, 50% Speed Disable Retraction: Should reduce oozing and stringing Cooling Fan: On after first layer Increase Multiplier: 1.1, should increase bonding Do not over extrude filament when loading. As soon as the filament start protruding from the nozzle, stop. Loading any faster will cause the filament to get caught in extruder gear. Feed the filament directly to the extruder, and not through the feeder tube. This reduces back tension in the filament as well as drag, ensuring proper feeding. What?s in The Package 1x SainSmart TPU Flexible Filament 1.75mm 0.8kg vacuum sealed w/ desiccant