Most Popular 28 Colors:</b> It Include the Most Popular Colors for 3D Printing Pen & 3D Printer

Widely Compatibility:</b> Universal Compatible with Most 1.75mm 3D Pens/3D Printers on Market, Except 3Doodler 3D Pen

Extra Gift:2 Finger Caps:</b> The 2 Finger Caps Support to Make 3D Printing More Easily and Smooth, It's Great Gift for Kids

Good Quality Control:</b> High Diameter Accuracy, Bright Beautiful Colors, Vacuum Package, Safe for Children