40 Pictures Large 3D Printing Pen High Low Temperature Compatible Drawing Book With Tracing Board

1. Double-sided three-dimensional drawing with various patterns
2. Safe and environmentally friendly materials, non-toxic and harmless
3. Bright colors, thick paper, reusable
4. Use with templates, easy to use
5. Material: paper
6. Size: large version is about 25.5 x 17.5cm, small version is about 21 x 14cm