The biggest finished pocket is a square of 3.75". The second down in size is 3.25" width x 3" tall The third is 2.5" width x 2" tall The smallest & most adorable is 1.75" width x 1.25" tall
Glue flaps are scored on sides and bottom. Stand alone pockets work well by gluing the backs. I find they look better removing the glue flaps off of one of them.
 
Please look at my other listings and if you would like multiple items, message me before purchase so that I can consolidate shipping costs for you.