APPLICATION: It is used for tuning piano, Guzheng and other instrument with the quadrilateral opening.<br> <br> L-SHAPE DESIGN: L-shape design simplifies tone adjustment. <br> <br> NON-SLIP HANDLE: Small and exquisite, sturdy and smooth handle. Non-slip for comfortable grip and handling.<br> <br> MATERIAL: Stainless steel key with high quality handle makes it durable to use for a long time.<br> <br> SAVING SILVER: It takes a large sum for professional tuning, tuning with this piano tuning key, it is a perfect accessory.<br> <br> Product Description<br> <br> Handle small and exquisite, sturdy and smooth. Non-slip for comfortable grip and handling.<br> <br> It is used for piano tuning, Guzheng and other instruments with quadrilateral opening.<br> <br> L-shaped design provides energy saving working for tone adjustment.<br> <br> Specification<br> <br> Condition: Brand New<br> <br> Material: Stainless Steel, Plastic<br> <br> Color: as shown<br> <br> Internal Bore Diameter: Approx. 0.65cm / 0.26inch<br> <br> Total Length: Approx. 16.5 cm / 6.5 inch<br> <br> Handle Length: Approx. 11cm / 4.3inch<br> <br> Weight: Approx. 77g<br> <br> Note:<br> <br> Please measure your device tip size before purchasing, make sure your devices size match with the quadrangle of the key.