Out of the box: no need to bring this violin bridge to more expensive accessories. It has been professionally pre-cut to fit most 4/4 violins (students or professionals). [High-quality wood brings excellent sound quality] The better the maple, the better the sensitivity to vibration. This is why your violin bridge is made of high-quality maple wood for ultimate sound sensitivity. You will hear the difference immediately: With its precise pre-cut thickness, your violin/bridge ensures a faster sound speed. The effect? Your violin will be faster, clearer, and sharper. Real ebony wood on the side of the E string: Unlike many violin bridges, your 4/4 bridge has super hard ebony inserts that effectively prevent the E string from cutting into the wood. Easy to Use: Your bridge fits most 4/4 models without any adjustments. But if you need to shape the violin, you can easily polish your feet to achieve a perfect fit. colour: wood color Material: maple + ebony Package Contents: 1 x Violin Bridge 4/4 Only the above package content, other products are not included. Note: Light shooting 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.