From the product description, check product page for current description, price and availability:

These 5-gallon ball lock Cornelius “Corny” style keg have dual grip rubber handles and rubber boot bottoms. They have seen their fair share of parties, but clean up pretty well, and we would know because we have done the work for you. We’ve cleaned, de-labeled, sanitized, and pressure tested prior to sending on to you for all of your beverage needs. We still recommend washing kegs with warm water and a mild soap prior to use since these are still reconditioned and not new. These come with a pressure relief valve built right into the lids, a benefit that pin lock kegs do not offer. There’s no question as to why these are our most popular kegs for brewers everywhere.

O-rings, valves, and other parts are replaced on an as needed basis to ensure the keg holds pressure prior to shipment. But we still recommend keeping a spare o-ring kit on hand at all times as they do tend to have a tendency of drying out. And just to make sure, we’ve included one gratis!

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