Schwinn King Sting Seat post. 26.8 in diameter 4130 and thick in construction. The post has a second piece of metal sleeved in it to make it super strong, and of course like all of our products, super heavy. But if you're riding a Schwinn weight is not a big concern right? Nickel plated finish, made in the SFV, USA "LA adjacent". 87.00 bucks shipped free to your door.