Squidster pens are certified, specially designed and manufactures for the use on skin.

The dual-ended Squidster Skin Markers feature both a fine tip and a 'brush' tip for the best freehand experience. Fine lining, stencil lines, shading lines, and fast sketching can be done with ease using this marker.

Squidster Sterile Dual Ended Skin Marker (Black/Blue/Red/Pink)