Offering thousands of impressions, this 3 in 1 Stamp can print Independent Work, Teacher Assisted Work or T.A. Assisted Work. Simply turn the dial to your preferred stamp.This useful pre-inked stamper is quick and easy to use, helping to save you time marking work.Stamps are self-inkingOver 10,000 impressions per stamp before re-inking requiredImpression approx 40mm x 14mm