No brain, no pain. Etruscan shrews shrink their brains to conserve energy in the winter - cool, right?! This hilarious illustration / amazing scientific fact make a perfect addition to your water bottle, device, or wherever you choose to place the sticker! * 2" x 3" rounded corner rectangular sticker - great size for most phones * Comes as a kiss-cut, easy to peel sticker on branded backing * Made of durable, waterproof, weatherproof vinyl * Appropriate for outdoor use and dishwasher safe * Designed by Permascowl