The Colnago SLR saddle features a lightweight rail system which reduces the weight dramatically. The saddle is available in either black or white, also in a limited edition Italian color model which is named the Italy model. It is useable with any of your Colnago seat posts. At only 160 grams this saddle will lighten your bike quite a bit and it also makes a statement. The SLR saddle is a great upgrade to any Colnago bike and should help provide a comfortable riding experience. Manufactured be Selle Italia and made in Italy this really is a genuine Italian Colnago saddle.