The Mini Scalpel Blades were designed to fit inside containers typically housing small first aid and survival kits. The small size of the Mini Scalpel Blades allows for greater versatility vs standard scalpel blades when packed inside small kit containers (Altoids Tin, Aluminum Kit Container, etc), the possibilities are endless with a blade this small. The Mini Scalpel Blades are available in two blade styles: #11 straight blade and #12 curved blade. Each set comes with one of each style (#11 and #12)