Our popular product TooG was developed based on the theory that “There are a lot of acupressure points in fingertips, which are seen as being involved with functional control of autonomic nerves. Applying light stimulation to the points enhances the action of blood vessels and organs.” After filing your nails with TooG, you will no longer make a run in your stockings. It is also useful in caring for gel nails. The mortar-like part on one side is for rough filing and the other side is for finishing. The cylindrical body has two different patterns of jags. The linearly arranged jags are for filing nails. The fine jags around the rim are for polishing the backside of the nail by just attaching it to the backside of the nail and rotating it.