Size: 4mm (will stamp numbers approximately 4mm tall).
Oil-free plated finish to protect against rust.
Each stamp labelled on side for easy identification and orientation.
Stamps soft metals-gold, silver, pewter, nickel, copper, brass, alkeme, aluminium.
Not suitable for stamping on hard metals like Stainless Steel.
Includes number 0-8 (6 is used for 9).