Pre-trimmed, belled and crimped for fast and easy placement, Accurately duplicates anatomy for better fit and performance, Superior longevity compared to multi-surface amalgam fillings, Permanent molar selection can be used for long-term cases with economic considerations, Crown set is packaged in a unique, stackable tray that provides convenient, easy storage of 3M ESPE prefabricated crowns, Wide array of shapes and sizes, High-quality stainless steel