If you have a business where pens just seem to walk away, you need this 6 pack of desktop gel pens. Each pen comes with a plastic coil and an adhesive base. Just stick the base on your desk or table and the pen is going to stay for a while! No need for power tools or hardware. The pens themselves are black with clear plastic and black ink. They measure 2.4 x 1.6 x 6.25 inches. The ballpoint is 0.5mm.