The Security Stamp Roller is an easy to use roller that will cover any length of text with specially designed characters that makes information impossible to read. Use on uneven surfaces. Helps protect you from identity theft. Simple, convenient alternative to a paper shredder. Ideal for use on junk mail. Specially formulated oil-based black ink. Environmentally friendly and you can then recycle stamped documents. Stamping surface: 1" wide Roller size: 2" x 1-1/2" x 1"