The package contains 30 pieces of metal stamping blanks in total, sufficient to meet your using and DIY needs, and also allow you to share with your friends. These rectangular metal tags are made of quality aluminum, sturdy and sustained enough to you for a long time, not easy to break or tear, without pointed rims, no worry about fingers being hurt, light in weight, easy for both beginners and skilled people to emboss. Our aluminum rectangle blanks measure . 5 x 2 cm/1.97 x 0.79 inch, with a thickness of . 1.5 mm/0.06 inch and a hole diameter of about 5 mm/0.2 inch, thick enough to avoid deformation, suitable to hold in hands and operate. Each side of our blank aluminum dog tags is pasted with a blue film to reduce potential scratching, the films are easy to remove, and please tear away the film before stamping. The aluminum stamping blanks can not only be applied to make necklaces, pendants, earrings, nameplates, badges, pet ID cards and so on, they are also suitable for garden plant marking. Colour:Silver Material:aluminum Package Contents: 1set * metal stamps Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.