This Lab Putty™ LED Scribbler will keep kids entertained for hours! The putty comes in a small, shallow tin and includes a battery powered LED light with a clip. Shine the LED light on the putty to make it change colors. Mold it, knead it, bounce it, twist it, stretch it, snap it, and melt it. Watch putty change color as you doodle with UV light. Kids will love writing messages in the putty. Doodles fade and putty returns to its original color, so the fun never ends! Recommended for ages 4 and up.