The Joint Series Petit Cases from Meiho Tackle Box are a line of pocket sized fishing storage boxes that are great for storing small hooks, weights or any other small item that can be easily lost in a tackle box. What sets these containers apart is that they can attach to one another or be separated based on the users needs. The M Size Petit Case features two rectangular attaching boxes that can be used as 2 separate containers or attached to form a 2 compartment container.