Feature: 1. Multiple Colors: This 3D printing pen consumables have 20 colors to meet your rich make needs, and can be finished with colorful works. 2. Excellent PCL Material: This 3D printing pen consumables are made of excellent quality PCL material, which is flexible, good color rendering, environment friendly and safe. 3. Good Performance: This 3D printing pen consumable has good performance, which is super soft and bubble free when heated, and does not clog the pen tip for stable printing. 4. Wide Application: This 3D printing pen consumables has a wide range of applications and can be used for crafting, DIY, children's drawings and so on. 5. Delicate Finished Product: This 3D printing pen consumable prints out a delicate finished product with a sleek surface that is not rough. Specification: Item Type: 3D Printing Pen Consumable Material: PCL Diameter: Approx. 1.75mm/0.07in Printing Temperature: 70℃-100℃ Density: 1.16g/cm Tensile Strength: 18MPa Elongation At Break: 11% Bubbles: No Bubble. Package List: 20 x 3D Printing Pen Consumable