The Wessell Nickel & Gross WNG Grand Piano Action Model 06-2500 Technician Sample is a high-quality piano action designed for use in grand pianos. Made by the reputable brand Wessell, this action model provides technicians with a sample version to test and evaluate for quality assurance. It is specifically crafted for pianos and offers precision and reliability in providing the desired key action and playability. Ideal for musicians and piano enthusiasts looking to maintain or repair their grand pianos, this technician sample ensures optimal performance and craftsmanship.