ExcelFil TECH Metal and Wood Composite\'s formulations have been carefully balanced to print on any standard printer even without heat-bed or stainless steel nozzle upgrades required. Unlike some filaments out there, our composite metal and wood particles have been carefully milled to ensure that they are safe to print at nozzle diameters down to 0.35mm. Voltivo ships ExcelFil TECH Composites on sturdy recyclable spools, vacuum sealed with a desiccant bag to ensure it arrives moisture-free. Key Features - Diameter and Roundness accuracy better than 0.03mm - Balanced composite to base polymer ratios to minimize nozzle abrasion - Metal and Wood Powder Composites are milled to exact diameters and treated with anti-oxidants - Formulated for low printing temperature, thus allowing for less blobbing and stringing - Support website with tested print temperature guidelines and other support tools - Arrives packaged in vacuum shrink wrap with a desiccant bag to ensure controlled humidity levels in transit - RoHS 2 certified - Free from harmful Heavy-Metals and Plasticizers Specifications Composite Ratios: ca. 30% milled Metal, Wood powders with a Polymer Binder Diameter Accuracy: 2.85mm 0.03mm or 1.75mm 0.03mm Roundness Accuracy: 0.03mm Optimal Print Temperature: You can find specific, tested temperatures for all materials and colors in our Support Database Spool Dimensions: Outer Diameter: 196mm, Spool Hub Diameter: 56mm, Width: 48mm Packaging: Vacuum-sealed with a sachet of desiccant Ships in: Rugged cardboard protective shipping box Box Size: 210mm x 210mm x 55mm Material Net Weight: 500g 20g (1.10lb 0.05lb)