I was looking for a small but not too small tool box that would fit the most commonly used tools - screwdrivers, pliers, wrenches etc. Durable. Yellow helps my husband "notice it" as he regularly has trouble "getting things right". ;) When it's full, I don't have a hard time carrying it around the house to work. I love that it has latches and you can lock it so little kids can't climb in.