This is a set of six 6 interlocking round plastic storage containers.  Each container has a female thread at the top and a male thread at the bottom.  Which allow the individual containers to stack together in a long tube.  Each pack also includes 1 male screw on lid.

Basic Dimensions of an individual container

• Apx. 47mm round by 21mm deep Internally
• Apx. 50mm round by 30mm deep Externally
• Apx. 24mm deep when stacked
• The Lid is 10mm deep