Thank you for viewing. This is a long-type (yellow brass, lacquer finish) main tuning slide for an Alexander 103. I have used it for about 3 years since purchase. As it is a used item, there are some discoloration of the plating and minor scratches, but it is a beautiful item without any distortion. As there are individual differences in instruments and tubes, please arrange for adjustments after purchase. ⭐︎I am also listing this on other flea market sites, so please send a message before purchasing.