Features: 1.Aluminum alloy material, anti-corrosion, fine workmanship, sturdy and durable. 2.Lightweight and won't add too much weight to your cello. 3.Also coming with adjustable tailgut, easy to install on cello. 4.Compatible for 4/4 cello. 5.Good quality with reasonable price, you're worth it. specification: Aluminum alloy material, anti-corrosion, fine workmanship, sturdy and durable. Lightweight and won't add too much weight to your cello. Also coming with adjustable tailgut, easy to install on cello. Compatible for 4/4 cello. Good quality with reasonable price, you're worth it. s: Condition: 100% Brand New Material: Aluminum Alloy Color: Black Suitable for 4/4 cello Size: Approx. 23 x 6 x 2cm / 9 x 2.3 x 0.7inch Weight: Approx. 85g Packing List: 1 x Cello Tailpiece 1 x Tailgut Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.