Everyone knows the teacher voice, probably the most terrifying thing on the planet. This vinyl sticker is a part of our Teacher Stickers Collection. Details: •2.9 x 3.04 inches • Printed and shipped with care from the U.S.A. • High quality and durable vinyl, indoor and outdoor use • Waterproof and weatherproof We are partnered with ActiveMinds.Org to help spread mental health awareness.