Pip-Squeaks Skinnies™ are small in size, but have big color so they're perfect for younger children. Draw thin or thick lines with its conical tip. Excellent washability; comes out of clothes and off skin with ease. Reusable flip-top box with tiered sleeves allows for easy access to markers. Set contains surprise inside: two stampers that fit over marker caps and can be colored with markers. Marker Ink Type: Washable; Marker Tip Type: Bullet; Marker Tip Size (text): Medium; Marker Color(s): Assorted.