What is a COLOP S120/DD?This self-inking date stamp features two 4mm daters side by side ideal for start and end dates, sell by and best before dates, etc.Each date prints in a day/month/year format, the date bands are easily adjusted by hand, and the year bands run for 10 years.The stamp is made from strong lightweight plastic, making the stamp ideal for regular use.Self-inking means that the stamp is fitted its own ink pad which will give thousands of clear and crisp impressions once dry, replacement pads can be bought separately and are easily fitted.