The M Series™ brand offers a wide selection and many options. We're pleased to add circles, squares and daters... 19 new models in all. We also offer each self-inker without a pad at a discounted price (save 20% when you buy units with-out pads). This can help you balance your inventory and use some of your “extra” pads. In addition, we also offer each unit with a red, blue or dry pad for those times when you have a specific request for a different color.