- Create party decor, custom cards, scrapbook pages and more. The ergonomic design is easy to use even with consecutively punching. SlimLock lever locks closed when not in use and can be stack to reduce desk clutter. A design label makes finding a punch and organizing your collection easy. Use with a variety of materials including textured cardstock, shimmer cardstock, glitter cardstock and other rigid and thin materials. Flip the punch over and see where you're cutting for better alignment and less waste. For easy use, the best results and a long life of the punch, use 70lb (100gsm) paper or equivalent weight cardstock from your local craft store.