Package includes 60 rainbow stacking pencils with 10 interchangeable colors each, totaling 600 crayon tips for daily use or sharing. Simply pull out the tip to change colors and push through the bottom hole to extend the next tip. Made of durable plastic shell to prevent scattering, smooth surface resists fading and breaking. Ideal for writing, underlining, drawing, sketching and note-taking in classes. Weight: 0.95 pounds.