The color change coils are created in our production when there is a color change. The color is created purely by chance from the corresponding color change. No color can be chosen.The use of high-quality raw materials creates a 3D printer filament that is particularly easy to process. Very low manufacturing tolerances are achieved using a state-of-the-art manufacturing process, which leads to convincing print results with all FDM 3D printers. Each spool is sealed in a high-quality bag.-Made in Switzerland- low diameter and roundness tolerances- easy to print Polyactide is a polymer that consists of lactic acid molecules, among other things.We currently have PLA filament 1.75 mm and PLA filament 2.85 mm in our range.A heated bed is advantageous for PLA filament, but not essential.We recommend using an air cooler when processing PLA filament.Furthermore, PLA is characterized by many times more pleasant odor propertiesthan other plastics during processing.However, the temperature below which PLA starts to soften is relatively low.Even at high temperatures in summer, PLA parts can deform!As a starting material, PLA is basically biological under special conditionsdegradable. However, the final product contains pigments and additives. Because of thatthe PLA parts still have to be disposed of in the garbage and not in the garden.This filament meets the compositional requirements of EuropeanRegulation No. 10/2011 on plastic materials intended for food contact. Characteristics: - minimal shrinkage - little delay - Low water absorption - Soluble in many organic solvents - High UV resistance - Low flammability - Heat resistance up to approx. 60°C PLA filament or polylactide is in principle biodegradable, whereby certain environmental conditions are necessary, which can usually only be found in industrial composting plants. PLA does not normally decompose in nature. We therefore do not recommend composting PLA filament or printed parts made of PLA.