Grifiti Mood Mouse Pad Heat Sensitive Color Changing Hard Surface Mouse Pad Changes Colors from 18 to 24 degrees works great as a mouse pad and a fun toy to teach about liquid crystal

Grifiti's Mood Mouse Pad is a mouse pad and a toy in one! This is a fun, simple product. It works as a ULTRA-THIN Hard Surface Mouse Pad with a tacky back to hold it in place on the desk. Peel Away the protective film on the back to expose the tacky back for positioning on your desk....leaves no residue. The color changing liquid crystal is HEAT SENSITIVE, not touch sensitive! You'll see color change from around 18-24 degrees so use warm hands, hot mug, or cool stuff if it's very hot. SEE ALSO: Grifiti Fat Wrist Pad 8, 12, 17, Grifiti Big-Ass Wrist Pad, Grifiti Slim Wrist Pad 5, 12, 17, Deck Lap Desks, Nootle IPad Tripod Mounts, Big-Ass Bands, and Chiton Lap Desk Sleeves for Laptops