This item was returned in mint condition. It is free of any performance issues, and has no scratches, blemishes, or other cosmetic flaws. - The Celviano Grand Hybrid GP-310BK blends innovation with traditional. From the moment your hands touch the keys, the GP-310 Grand Hybrid delivers the authenticity your performance demands. - Authenticity Begins at the First Touch - The Natural Grand Hammer Action keyboard is made with full-length, wooden, concert grand piano keys, using the same materials and processes as the C. Bechstein concert grand pianos. A keypress sends a hammer along the same vertical path as a grand piano, with the same essential weighting and pivot points, resulting in a true and uncompromising piano touch. The GP-310 features an enhanced touch response algorithm that allows for an even more accurate response. Players will feel more control with a softer touch, enabling flawless expression of the most subtle of performances. - Three Legendary Grand Pianos - Casio s Ai - R Grand Sound S...