Why settle for one when you and your friends can drive the bird's crazy at the same time! All whistle are BRAND NEW and made from only the highest quality material, durable and made to last. Don't be fooled by other cheaply made whistles offered. We sell only the ORIGINAL Ederna Bird Whistles. Easy to use and complete instructions included. 1000's sold around the world! This product is recommended for ages 14 years +.