Add sparkle to your art projects with Glitter Markers in 12 dazzling colors! Ultra-glittery markers! Fine 0.7mm bullet tips. Water-based ink. 12 vibrant colors. Inks look best on light-colored backgrounds. TO START INK FLOW: Gently shake marker. Uncap. Press tip down against a surface until ink flows to tip, then draw. Recap marker right away when finished. Each marker measures 5-1/4'' in length. Set comes in a sturdy plastic storage case that keeps markers safe and organized on the go. Case measures 6'' square.