Our violin chinrest screw ring is carefully design. Crafted with copper, these screws rings are designed to enhance the resonance and projection of your violin. With this accessory, you can expect vibrant and brilliant tone from your instrument. Features -Color:Silver -Material: -Size:0.90X0.90X0.50cm/0.35X0.35X0.20in -Size:0.80X0.80X0.40cm/0.31X0.31X0.16in -Safe copper material: constructed with copper material for enhanced durability and stability. - craftsmanship: delicately crafted to ensure the screws ring detail and extended lifespan. -User-friendly installation: easy to install, enabling users to effortlessly replace or repair. -Wide range of applications: suitable for various types of violins and violas, accommodating different instruments. -Convenient spare parts: includes enough screw rings, offering users convenient backup options. Package list: 2 x Upper Screw Rings 2 x Lower Screw Rings