Made of rubber material and durable, not easily be broken. Suitable for packaging production date code, batch coding, date coding caps, valid coding, date coding food, electronic components, plastics, paper, glass, metal hardware, wood, cloth. Each belt 0-9 (10 digits),A-Z (26 letters) and + -. X / # @spaces, each belt can freely rotate different numbers, letters, punctuation. Rotate back and forth to print,so interesting! After the immersion, the font will not swell but imprinted clear. Use: Decoration Colour: gray Material: rubber Size: 162 x 68mm Package Contents: 2 x Rolling Stamp carton packaging 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.