Features 1、Specially designed instrument replacement, suitable for most interfaces of alto saxophone. 2、Not only has good resonance effect, but also the air-flow, pitch and intonation is superior. 3、Made from high grade brass and plated with gold, rust-proof and corrosion-resistant, very sturdy and durable for use. 4、Equipped with a cork, no additional purchase of this saxophone replacement. 5、Exquisite workmanship, glossy and smooth surface, making the sax more beautiful. Specifications: Features： Specially designed instrument replacement, suitable for most interfaces of alto saxophone. Not only has good resonance effect, but also the air-flow, pitch and intonation is superior. Made from high grade brass and plated with gold, rust-proof and corrosion-resistant, very sturdy and durable for use. Equipped with a cork, no additional purchase of this saxophone replacement. Exquisite workmanship, glossy and smooth surface, making the sax more beautiful. Specifications： Color: Gold, silver (optional) Material: Brass Product Size: 17 * 2.45 * 1.5cm/ 6.6 * 0.96 * 0.5inch Product Weight: 123g/ 4.3oz Package Size: 22 * 15 * 4cm/ 8.6 * 5.9 * 1.5inch Package Weight: 128g/ 4.5oz Package List： 1 * Saxophone Neck Package List 1 * Saxophone Neck