All measurements are approximate. Overall good condition. The seat post has an 1.125" outside diameter and extends about 8.5" below the seat mount. Seat is around 11" from front to back and 6.5" at its widest part. There is a scuff and a small puncture on the back of the seat and some scuffing in the finish of the post, all shown in the pictures. Please let me know if you have any questions. Thanks for looking!