Each one is made in one piece which opens and closes easily.
The integrated closure fastens securely so that it stay shut while being carried.
The sizes combine and tuck inside one another which has many practical uses.
Have hinged cover and flip lock.
Note: not liquid tight.
Large: 22.5 x 12.1 x 6.8cm high
Medium: 13 x 10 x 5cm high
Small: 10 x 8.4 x 5.2 cm high