These burs are made of the finest Swedish Tool Steel in precision Swiss factories that. specialize in athey very finest cutting instruments in the world. Each set comes in a plastic stand with a clear dome lid and 3/32" shanks. Sizes 1.00 to 7.20mm. Shapes include: Round, Bur, Hart, Setting, Cone, Finishing, Flame, Cup, Oval, Cylinder and many more (shapes will vary).