We are throwing in 4 sets of O-rings with every purchase of these kegs Pressure tested 5 gallon,Pinlock, stainless steel, corneliusstyle tank. These tanks are guaranteed to hold pressure. Tanks show normal wear & tear.Pin Lock lids.22" - 24" tall x 9" in DiameterKegs are fully assembled - optional new parts are below. Example: If you want new o-rings, check the box below. We know some homebrewers are more picky than others, so please keep in mind that these are USED pin lock kegs. Some of these kegs are probably 30 years old. Do not expect new kegs. If you are looking for new kegs, please check out our new kegs. We try and have quality kegs available at all times. With this said, they are going to show normal wear and tear. We try not to purchase from Pepsi or Coke to avoid heavily used kegs. We are not implying that our kegs are not quality...we just want to avoid any misunderstandings. If you are unhappy with your used 5 Gallon Pin Lock Cornelius Kegs for any reason, we will gladly take them back. The purchaser will be responsible for return shipping charges.