DeVault Enterprises ICD2000 Full/Half Barrel Beer Keg Stacker

This is a fairly uncomplicated, but heavy-duty plastic ring that makes stacking kegs easy, minimizing the amount of space required. When combined with an adequately rated keg dolly, this makes moving double-keg stacks easy for rotating stock or cleaning. My only complaint is it is grossly over-priced. But I can't find anything similar on the market. Hopefully we'll see some competition with comparable quality bring prices down.