Ink levels are unknown, but all pens have ink. Please refrain from purchasing if you are concerned about this. Another type is also available, so color changes are possible. For those who want to buy in bulk, I'll include a bonus. This set of 6 MILDLINER highlighters with a variety of colors will brighten up your documents and notes. - Brand: MILDLINER - Colors: Pink, Yellow, Orange, Green, Blue, Purple - Type: Highlighter - Quantity: Set of 6 Thank you for looking.