What is a COLOP school stamper'Motivate – Reward – Boost confidence!School stampers are a great way of giving positive feedback on kid’s workbooks, notes, and reward charts. They can even be used as part of a loyalty scheme for customers.The stamp measures 22mm dia and will give around 15,000 impressions. Once the stamp dries out you can simply refresh with COLOP’s specially formulated EOS ink, which will give your stamp a further 15,000 impressions.Using flash technology, these stamps provide high quality imprints of up to 600dpi in strong vibrant colours.Supplied in an attractive domed box to keep you stamp free and your surfaces clean.