Alex Toys-Sketch It Nail Pens: Glow. Paint, sketch and glow color onto you and your friends nails for any occasion! This package contains five 0.34oz nail pens with a precision tip on one end and a brush on the other. Recommended for ages 8 and up. CAUTION: Flammable- keep away from heat or flame. WARNING: Choking Hazard- contains small parts. Not for children under 3 years. Imported.