There are 8 pockets in total. At the top: 1 extra big pocket, 3 big ones and at the bottom: 4 smaller ones.
The biggest pocket: 25cm x 33cm.
The bigger pockets: 20cm x 33cm.
The smaller pockets: 15cm x 33cm.

All rolled out: 145cm length and 33cm width
Folded together the Hang&Roll only takes 33x20cm.