The Schoenhut Thumb Piano has twelve metal tongues or keys. It is primarily a percussion rhythm instrument. Simple songs are easily tapped out using only your thumbs. It is tuned to the C key. Each instrument is handcrafted, serialized and signed by the artist. The thumb piano or marimba is easy to play and has a quiet soothing sound. By gently striking the ends of the keys with your thumbs, you can play familiar melodies and rhythms or improvise your own. It is a fun instrument to play since anything you play on it sounds good. Made of Birch and plywood, it is 7.5" L x 5.7" W  x 1.8" H and weighs 12 oz. It received a Best Vacation Children's Product Award from Dr. Toy in 2005. Launch date: 2005.