The Toy Acoustic Guitar with 6 Tunable Strings and Real Musical Sounds by Hey! Play! is the perfect size guitar for toddlers to learn about music. This guitar measures 21 inches long, and is bright, colorful, and fun to play. It features 6 guitar strings that are tunable from the adjustable knobs on the back, which produce actual musical sounds when played. It also teaches tones, rhythm, and hand-eye coordination. Gender: unisex.