3D Snap Envelope cut dies: Metal cutting die contains 3 sets of templates, 15pcs in total. 3 different shaped snap on envelopes are perfect for making beautiful decorative paper crafts, holiday greeting cards, and scrapbooks. Quality: Selected high-quality carbon steel materials, the cut stencil is very light and thin, with finely polished edges. Cutting dies are not easy to deform or break, rust resistant, easy to use, safe to touch, and can be cleaned and reused. Size: The size of these metal cutting die sets are: 3.66x5.91inch/93x1550mm, 2.95x5.91inch/75x150mm, 4.21x5.91inch/107x150mm. How to Use: These metal cut dies can be used with many brands of die cutting machines(not included). Suitable for cutting paper, thin cardboard and more.(Please be careful when cutting.) Widely used: These metal cutting dies are very suitable for DIY manual design, such as scrapbooks, card making, paper crafts, theme invitations, pocket scrapbooks, album decorations, photo frames, and more craft projects.