Designed suitable for Both and Beginners: This comprehensive kit is perfect suitable for piano technicians, music schools, and hobbyists looking to fine-tune their piano tuning skills. It includes everything needed suitable for both grand and upright pianos. High-Quality and Cost-Effective Manufacturing: Crafted by expert manufacturers, this kit offers exceptional value with its fine craftsmanship and dependable quality. It's designed to withstand the rigors of regular use while maintaining tuning precision. User-Friendly with Tuning Software Compatibility: Achieve professional tuning results . This kit works seamlessly with popular piano tuning software, allowing even novices to expertly tune their pianos with ease and precision. Innovative Octagonal Tuning Wrench: The included wrench features a versatile 2-head, octagonal design, specifically engineered suitable for easy access and adjustment of piano's corner shaft nails, enhancing tuning efficiency and com suitable fort. Material: Metal colour: As shown Package Contents: 1 x Piano Tuning Kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.