There are 5 compartments to it. It has a central container which is slightly taller than the other 4 and then 4 interlocking sections to create a large base.
I think I still need to play with it a bit and work on the dimensions etc. Maybe if I added some dividers to it then I'd be able to group the PMs into colour groups (nah, think that's too adventurous for me!). Anyway, enough waffling, what do you think?
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On a seperate issue, has anyone else been getting a lot of spam comments lately? I've had LOADS over the last few days and so have had to turn on word verification to combat it. I've never had this option on before because I wanted people to be able to comment without any hassle, however, the situation got too much. Hope this doesn't put people off commenting here.