BLACK LIGHT MAKEUP PEN - FINE TIP APPLICATOR APPLIES TRANSPARENT MAKEUP "INK" DIRECTLY TO SKIN OR OVER MAKEUP. LIGHTS UP INSTANTLY BENEATH BLACK LIGHT, INVISIBLE UNDER NORMAL LIGHT. GREAT FOR LIVE ACTION, HAUNTED HOUSE, LASER TAG, NEON BOWLING OR CLUBBING. FDA APPROVED. WATERPROOF AND PERSPIRATION RESISTANT. APPLICATIONS: 5-25.