The Chain Locker® Pro Series universal saw chain storage case has 2 rows, 2 crescent shaped tabs at each end and a separator guide down the center. The universal design can be used for long chains, short chains and anything in between. Plus, with the extra room, there's even room for a few tools such as a t-wrench and a file. When using it for long chains, such as a 36" (or even longer), simply guide the chain around the crescent shaped end to wrap it around in a tangle free manner.  The Pro Series can also be used to neatly organize different sized chains as well as using one side for "sharp" and the other side for "dull" chains.  The Pro Series was designed to accommodate any chain as thick as a .404 pitch.  The Pro Series can stack chains 2 inches deep. No matter the length of chains, the Pro Series has you covered and was designed with simplicity and versatility in mind. Made in the USA. Patented.