TOPZEAL 3D Printer Filament PLA 1.75mm UV Light Change Color Series, Dimensional Accuracy +/ 0.05mm, 1KG(2.2LBS) Spool for and Pen (White to Red)

【COLOR CHANGED BY LIGHT】-- light color changing filament changes color from natural white to blue when exposed to sunlight/UV light. The color change occurs immediately. The color will change back to natural white when no longer exposed to sunlight/UV light. 【PERFECT ROUNDNESS WITH ±0.05MM TOLERANCE】-- inspected by laser, we ensures each inch of filament is precisely engineered to +/-0.05mm error rate. Consistent round shape avoids unexpected interruption in printing. 【HIGH PURITY AND CONSISTENT SHAPE PREVENTS CLOGGING】 -- the melted raw materials are filtered by stainless steel meshes which prevent larger particles from going into the final filament products. 【NO WARP AND STRONG LAYER ADHESION】 -- excellent first layer adhesion, improved adhesion between layers, reduced warping, shrinking, curling, and failed prints. 【LITTLE TO NO ODOR AND BIODEGRADABLE】 -- made from natural renewable resource, environmentally materials do not harm to users and the environment. the filament is 100% biodegradable & non-toxic.