Deli's ColoRun EC10023 Washable Felt Pens are in really impressive 24 bright colours for kids as well as professionals with a good value for money having round barrel with 1.0 mm Fiber bullet tip. 1.0 mm Fiber Bullet Tip 24 Colours Markers Material: PP Non-Toxic Specifications: 10.2 mm (Diameter) ×145 mm