Overall  Length of the baffles is 20 1/2" inches.  OD of the small end is 2 3/8". OD of the large end is 3 3/4". This is a new part never installed. Been in the box sitting on the shelf for years. Minor surface rust. Will not affect performance or install. Shipped free in original factory box. 2 Baffles in this sale.  Made in USA