Butterfly open tool fits on your keychain yet has 12 useful tools Mini multi-tool with an impressive list of features, ensuring you are ready for anything Unique blade designed to safely cut and score plastic packaging The idea is simple: always be prepared. The Dime is a mini multi-tool with an impressive list of features, ensuring you are ready for anything. This butterfly open tool fits on your keychain yet has 12 useful tools. Available in multiple colors and a bladeless version as well.