Sizzix makes it easy to add an intricately-detailed border to your projects with this four-die set. These Thinlits dies were designed in a process called chemical etching. Very thin and highly detailed, you will love the wow factor these borders give to your cards and layouts. Rachael Bright designed this four-die set. Designs include swirls, scallops and more. These dies range in size from 6 1/2" x 5/8" to 6 1/2" x 1 1/8". They can cut one sheet of paper, vellum, cardstock and metallic foil. Because Thinlits dies are so thin, they are portable and easy to store. In addition, they are easy to use in a BIGkick, Big Shot or Vagabond machine with the use of Cutting Pads and the machine's Platform. If you are using the Essentials Platform or Solo Platform and Shim, you must also use an Extended Adapter or Solo Adapter (all items sold separately). Note that these dies are very detailed and may require as many as three passes through your machine to fully cut. The intricate details may make it difficult to remove your shape from the die. If you continue to have trouble, use the included ejection foam. Also included in this package is a storage envelope to hold your die. Cut off the front flap of the packaging and save it in the envelope to quickly identify your die.