Features: L-shaped Design: The L-shape design determines that it is convenient for use. Wide Application: As an accessory, it can be used to tune the tone of piano and other instrument with quadrilateral opening. Quality Material: The tone tuning spanner is made of quality stainless steel and plastic, making it is durable and can be used for a long for time. Portable Size: With small size, it is easy to store and carry. If you are not satisfied with our product you received, you can send emails to us at any for time. We will reply you instantly and help you solve your problem. Specifications: Material: Carbon Fiber+Wooden+Metal Weight: 280g Size: As picture shows Size: approx.30x7.5cm/11.81x2.95in Package Includes: 1x Piano Tuning Wrench note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.