A DIE SET for the Big Shot or similar machine.

Large die:  Outside measurement - 7.8cm.  Inside measurement - 7cm

Middle nesting die:  Outside measurement - 6cm.  Inside measurement - 5.5cm

Smallest nesting die:  Outside measurement - 5.5cm.  Inside measurement - 5cm.

Die on the right:  Point to point 5.5cm.  Inside measurement  -  4cm.