Share 'Ordered a lot of 10 boxes from Ebay -- which ones are good?'

Hi, I'm new here.  I've been making mountain dulcimers.  Just recently I got interested in making a CBG, but didn't know anything about dimensions, HxWxD that are good for it.  I bid on this collection, figured the average would be $4 per box, and am waiting for it to arrive.  Question is, I'm not sure of the sizes.  A couple of them look like amp material, maybe a few jewelry boxes?  I'm hoping…