Leuchtturm Storage box for 100 coin holders - blue base, clear cover
The Leuchtturm Storage box hold 100 coins in 2x2 coin holders and keeps them safe from dust and air.
They have a blue base with a clear cover for easy viewing with no need to remove coin holders from the box until required.
Overall size: 170mm x 110mm x 65mm.
Loose Change Coins has been using these for years now, and they have proven sturdy, and effective for storage and organisation.