【Great Compatiblity】: The shaft adapter is compatible for Alpha 815, which is a great accessory for lovers. 【Premium Quality】: This brand new club shaft sleeve is made of high quality aluminum alloy material, which is and anti-rust. It is not easy to break, has quality and long service life. 【Easy to Install】: The shaft adapter sleeve is easy to assemble onto the club head, which is a nice replacement part for sleeve. 【2 Sizes】: The shaft sleeve has 2 sizes for you to choose, you can choose it according to your needs. 【Product Specification】: Material: aluminum alloy; color: black; type: 0.350, 0.335(optional); length: approx. 6.7 x 1.5cm / 2.64 x 0.59in; weight: approx. 15g.