3D Pen Filament Refills

This is a convenient kit for working and storing 3D Printing Pen and Filament Refills.Due to the compact packaging, you will always have exact color of the PLA Plastic Filament at hand.Guaranteed Safety: These 1.75mm PLA Filaments are odorless, smokeless and non-toxic. They are also hypoallergenic. You can be assured that you and your family are safe from any harmful, toxic chemicals. Important:Please make sure your pen use 1.75 mm diameter of 3d pen filament;Place Glowing Colors Under the Light or Sunlight for 30 Minutes to Absorb Light. 1: The melting point of high-temperature consumables PLA is 160-200℃---biological materials, corn grain extraction, degradable, environmentally friendly, hard, high strength and rigidity. The surface is bright, the hand feels crisp, and the printing will not warp the edge;2: Low-temperature consumables PCL melting point temperature is 60-100 ℃ --- polycaprolactone environmentally friendly food-grade material, painting works or defective products can