This whistle/flute is dynamic in design, as with the slider you are able to slide to whichever note you please. To play, simply blow into the flute and slide the slider back and forth to tune. This wind instrument is perfect for beginners, and even children, as it does not require advanced musical knowledge or experience. They are convenient as entertainment and music. Because they are made from bamboo, it is ideal to store in a dry place and not get the flute wet for prolonged periods of time, to prevent the wood from splitting. These flutes come with unique designs, such as pictures of animals painted onto them. They are made in Peru.  The dimensions are: 2.5” x 7”.