The small size can fully line a large 123coolbox using 36 123coolblox.
Size: 465mm x 336mm x 23mm
The large size can make up to three layers of six 123coolblox in a large 123coolbox.
Size: 465mm x 336mm x 40mm
123coolblox fit neatly inside the flat-packed 123coolbox for easy return and re-use