To ensure that your die remain in place, these storage tools are magnetic for added security. These premium Sizzix storage sheets are the perfect tool for keeping your dies organized. The Sizzix Magnetic Storage Sheets with envelopes are transparent for added convenience and easy viewing. Suitable for your Sizzix Framelits, Thinlits and Stamps, this versatile storage tools can be used for a multitude of different dies. 6 1/2″ x 4 3/8″ Magnetic Sheets with 6 7/8″ x 5″ envelopes.