This listing is for one 3/8" X 4-1/2" Cotter Pin use to retain rotary cutter tailwheel fork in mount on several brands of rotary cutters. Specifications 3/8" X 4-1/2" usable length Use to retain Fork to mounting bracket We sell many replacement rotary cutter parts. If you don't see the parts you need listed please contact us we would love to earn your business. We are listing new items frequently so please check our store often. Replaces code: 65193 We stock a wide variety of replacement parts for Agricultural Equipment please contact us if you have any questions or if you would like more information.