Framelits from Sizzix are wafer-thin chemical-etched die sets that cut perfectly without any ridges. These nesting circles are excellent for cropping photos and cutting windows in scrapbook pages, cards, boxes and bags. You can use the cut circles as stencils or layer them to produce a 3-D effect. The dies in this set range from 1 1/4" x 1 1/4" to 4 1/4" x 4 1/4". They can be used with the BIGkick, Big Shot, and Vagabond machines with the proper cutting pads, platforms, or adapters, all sold separately.