The lyre harp features metal strings, pins, rivets, and a 10-string lyre harp design. Made with high-quality metal materials, the strings produce a clear and beautiful sound, are gentle on the hands, and are easy to tune. Tuning Wrench: Use the wrench to adjust string tension by turning clockwise or counterclockwise. Ensures stable tuning, excellent sound quality, and is resistant to moisture and rust. High-quality harp end pegs provide strong and consistent string fixation. Constructed from durable metal pins with a bright, non-fading finish and high hardness. Nickel-plated threaded pins help replace loose tuning pins. 10-String Lyre Harp: Produces a resonant tone that fills a room. Shorter strings yield higher pitches, corresponding with string tension. Suitable for use with dulcimer, zither, harpsichord, or harp. Smooth finish ensures no hand injuries, delivering an enjoyable music experience. A great accessory for musical instruments and makes an ideal gift for children, adults, and musicians. Material: Metal Color: As shown in picture Package Contents: 1 x Tuning Wrench 10 x Piano Nails 10 x Rivets 1 x 10-String Lyre Strings Note: Only the items listed above are included. Other products are not part of this package. Note: Lighting and display differences may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3 cm.