This screwdriver pen is a must have for your jewelry crafting tool arsenal. It's both lightweight and versatile.Details:Silver colored9 piecesMultipurposeAluminumContents:1 – 1.5 mm (0.15 cm) screwdriver head1 – 2 mm (0.2 cm) screwdriver head1 – 3 mm (0.3 cm) screwdriver head1 – 3.5 mm (0.35 cm) screwdriver head1 – #00 screwdriver head1 – #0 screwdriver head1 – #1 screwdriver head1 – #2 screwdriver head