L-shape Square Wrench, Tuner Spanner Tip String, Pin Repair Tool. Features: L-shape Design, Easy to Use It. Small and Exquisite, Convenient to Carry It Specially Designed for Tuning Guzheng and Most Machine Devices That Have Quadrilateral Openings. Search Ever Trust for More Choices Specifications: Type: Upright Piano Number of Tone: Xxx Model Number: L-shape Square Wrench Tuner Spanner Shell Material: Other Keyboard Material: Other Soundboard Material: Other Number of Keys: Other Weight (kg): 0.08 Maximum Polyphony: Other Number of Demo Song: >100 Size: Length: 17cm; Width: 2cm . We are an international seller, your order will be shipped from abroad so please allow the necessary time of minimum 14 working days for delivery right now depending on where you ship to, due to ongoing delays in postal deliveries globally.