The compass point allows precise drawing of circles, and its adjustable slide locks into place for accurate measurements. (hand2mind.com)
FIVE: Sally Hansen I < 3 Nail Art Stylo in Blanc — This is the perfect nail art pen for doing any very precise drawings / nail art on your nails! (stillbeingmolly.com)
Pictographs offer an escape from that kind of precise drawing. (educationworld.com)