Descprintion [100% non-knotted] - Perfect filament winding that compatible with the most FDM/FFF 3D printers. You don't need to bear printingfailure after 8 hours printing or more due to tangle issue. [No warping & Good Layer Bonding] - Excellent first layer adhesion to reduce warpage, shrinkage, curl and print failure. Goodlayer bonding strength make the printing parts stronger. [Purity material & Precision Diameter] - avoid print failure jam or clog and making you a smoothly printing & better surface. [Non-brittle & Good Overhang Performance] - Unique based recipe assure you can print stronger and more overhang model. Lessstringing. [Technical support available] - we can support on how to use our material on your printer. Technical support available 3D printer filament parameter Data Material PLA Color Tri-Color Diameter 1.75mm Tolerance +/-0.02mm Printing temperature 180~210ºC Net weight 1kg Spool size 200mm diameter, 51mm hub, 75mm height Gross weight 1.45kg Package Vacuum sealed, individual box Features: Straw spool which more environmental friendly and nice appearance. We are the only one with this spool over the world. Filament function not only compatible all 1.75mm 3D printer without lock key, the spool size also suitable for MakerBot replicator 5th generation. Why Flex? There are some reasons why you need Wood. Flexible and Compressible surfuce. Can be printed with large size without wrapping. Environmental friendly that can be biodegrading. Applicability: RepRapper Flex 3D printing filament compatible with MakerBot 3D printer, UP 3D printer, Afinia 3D printer, Solidoodle 3D printer etc who without lock key of their filament with 1.75mm diameter. Why us? 1) Direct manufacturer, top 3D printer supplier's top choice. 2) With reputation of innovation on 3D printer field over the world. 3) Not only tight quality control on products itself, the more important is the systematic quality control on the whole supply chain. 4) Fast delivery. Ship out products within 5 days for all color and material if less than 1000 kg. 5) Spool can be customization but need longer time. 6) Accept OEM/ODM over the world for large order. 7) Unconditional return(Buyer need afford delivery cost if no quality issue) Though we recommend you using Yousu brand filament, but not means you must buy from us directly. We also recommend you buy our reseller in your local region to save the deliver cost. Of course buying from us also welcome. In order to get a successful printing journey, you can view the following tips for reference. Tips: How to get a perfect printing model? In fact you want to get a perfect printing model, you need a reliable printer with the 3D printer at right temperature under right parameter setting. It means that your printer should under good condition; your filament should be good enough. The following tips are based on this question. Tip 1: What is your idea printing temperature? In fact different printer series and different printer sensor has different temperature tolerance. Regardless sensor difference, the printing temperature of REPRAPPER ABS filament is 200~260ºC, the idea temperature is 230ºC. Different color has little variance. The printing temperature of REPRAPPER PLA filament is 170~240ºC, the idea temperature is 210ºC. Different color has little variance. For UP and Afinia printer, you can use it directly under ABS or PLA mode (Depends on what material you bought). For Makerbot etc printer that allows you change the temperature, you can set a temperature (e.g. 230ºC), then extrude the filament manually before printing. If you saw the filament can flow up