40 Pictures Thickened 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