Sizzix-Thinlits Dies. Thinlit dies offer a variety of affordable solo options or multi die options. Thinlits are easy to use and are compact and portable. Compatible with most die-cutting machines (not included). This package contains four dies. Design: Detailed Butterflies (measuring between 2-3/4x2-1/4 inches and 3x2-1/4 inches). Designer: Tim Holtz.