There are four Thinlits dies included in this set designed by Rachael Bright. The Sizzix Border, Label, Medallion & Key dies give crafters plenty of options. Use these intricately-detailed dies to cut one sheet of paper, metallic foil, cardstock or vellum. Use them together or separately for even more creative options. They are very thin, making them portable and easy to store. These chemically-etched dies can be used in a BIGkick, Big Shot or Vagabond machine with the use of Cutting Pads and the machine's Platform. When using the Essentials Platform or Solo Platform and Shim, use an Extended Adapter or Solo Adapter in addition (all items sold separately). Please note that these dies are very detailed and may require as many as three passes through your machine to cut completely. If you are having trouble removing your shape from the die, try using the included ejection foam. Also included in this package is a storage envelope to hold your die, with a front flap that can be cut off and stored in the envelope to help quickly identify this set. The dies included in this package measure between 1 3/8" x 1 3/8" and 5" x 3 3/4".