Get a close-up look at leaves, bugs and the rest of nature with this handy 4x magnifying glass! When you find something interesting, use the two tones on the whistle to inform your friends. Included in the Nature Detective Set is a magnifying glass which provides 4x magnification and a whistle that can play two different tones, both are equipped with wrist straps for safekeeping and ease. Made from sustainable bamboo and plant plastic. Suitable for children aged 5 and up.