Set of 3 Dino-Sounds™ (One each of Stegosaurus, Triceratops & T-rex). These uniquely hand crafted dinosaurs carvings create fascinating sounds when admirers blow through an air hole in their back. Complete set of Stegosaurus, Triceratops and T-Rex. Handmade, no two are exactly alike. (requires one hard consistent blow/breath of air). Note: contains a plastic insert which creates the sound upon exist.