3D Printer Filament Bundle, Glow In The Dark Filament, 250G X 4 Pack. Product Details ?Are the regular 3D printer filament colors too monotonous? Better to try Glow in The Dark Filament,which appears white at day, but emits light at night. Making it perfect for creation needing low-key, rich and enigmatic appearance; ?What is an excellent PLA filament for you? A filament that can glow in the dark? Odorless, Clog-Free, Bubble-Free Easy-to-use? No odor and low warpage during printing? High toughness and excellent strength?How about something that combines the functionality of all of the above! ?Safe to use and made of natural materials?reliable and durable. CE, RoHS certificated by authority,. The phosphorescent substance in PLA Filament absorbs light energy and emits light in the dark. In order to get better results, we recommend that the model be exposed to sunlight or UV light for 15 minutes. ?You don?t have to worry that it will be incompatible with your 3D printer ? 1.75 mm in diameter, dimensional accuracy +/- 0.03 mm. It works perfectly with most FDM 3d printers on the market. (For example MK3, Ender 3, Monoprice FlashForge, etc.) ?Vacuum sealed packaging: iSANMATE 3d filament is carefully vacuum packed with desiccant to maintain the performance of PLA filament. And keep it dry to prevent dust and foreign matter from entering to prevent nozzle clogging. Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.