I’ve designed some guides to help you select what size block or blocks you need for any given stamp set. If you print these out onto our white vellum paper (#101839), you can place them over the catalog pictures and see what size you will need. Slip them into crystal clear page protectors (#103145) and they will last a long time. I’ve made them 1/8″ smaller than the dimensions of each block to allow for the curved edges our blocks have. I just love our clear blocks! I’ve seen and tried many different kinds but none are as nice as these. All 4 edges are easy to grip and they are SO comfortable in your hand. No sharp edges, they’re all nicely rounded. Remember they are available individually, but if you purchase them as a bundle, you save over 10%! Just click on the yellow “Click here to order” button to get yours!