1. Material: Plastic 2. Length: Pen length 15.6cm 3. Packaging: Boxed 4. Size: 12 colors 16.5x9x3cm; 18 colors 16.5x12.8x3cm; 24 colors 16.5x16.5x3cm 5. Weight: About 110g for 12 colors; about 157g for 18 colors; about 210g for 24 colors 6. Smooth ink discharge, not easy to wear, durable 7. Can be used for writing notes, making your learning life more colorful
