RISK-FREE SERVICE & PACKAGE - What you get: One-month free trial, Lifetime Quality Promise and Money-back Service if you’re not 100% satisfied. Package Includes: 1 x 1kg Spool of 1.75mm Silk PLA filaments, 1 x Resealable bag with desiccant for better storage of unfinished spool. | SHINY SILK PLA & PREMIUM PLA PLUS - Duramic 3D Silk PLA sticks to our PLA+ formula, which gives you not only 8 times improved mechanical properties but also shiny finish like gold, silver and copper without need for polishing. | ACCURACY & CONSISTENCY - Duramic uses digital caliper system which measures the dimensions a thousand times and automatically adjusts them. This help ensures the 1.75mm diameter and the ±0.05mm tolerance are accurate and consistent. The color is also consistent without traces of other color. | SMOOTH & STABLE PRINTING - Duramic 3D promises no tangles, no bubbles and no clogs due to its rigid manufacturing quality control. Give us a chance to prove we’re your future go-to filament with its smooth extrusion and stable printing performance. Recommended Extrusion/Nozzle Temperature 210±10C. | USER-FRIENDLY & COMPATIBLE - Universal compatibility with diverse FDM 3D printers in market. User-friendly with length scale and weight scale to monitor remaining length and weight easily. The storage hole is designed to place the end of the filament to prevent tangling. Eco-friendly and odor-free.