The Wittner Ultra 4/4 Violin Tailpiece with Fine Tuners is designed for use with violins. This particular model, the Ultra, is made by the brand Wittner and is identified by the SKU P10076.50. It features fine tuners that allow for precise adjustments to the violin strings to achieve the desired pitch. As an authorized dealer, this product is guaranteed to be genuine and of high quality, making it a reliable choice for violinists looking to upgrade their tailpiece for improved performance.