Material : Plastic Use : Office & School Pen Erasable Or Not : No Gel Pen's Ink Feature : Normal Writing Point : 1.0mm Gel Pen's Ink Type : Gel-Ink Description: One set, four styles: This set contains 4 different pen styles: Glitter, Neon, Pastel and Metallic. Use on white and black paper: These multi-functional pens work for various mediums and projects, including black colored paper! Quality ink: Non-toxic, acid-free. 1.0 mm ball-point works great for sketching, drawing, lettering, party invites, greeting cards, arts and crafts. Handy packaging: The see-through case makes for easy selection and holds each pen in place for organized storage. Package Includes: 12//24/36/48 x Gel Pens