Capless Roller Ball boasts high precision: This capless roller ball has a special structure that allows the clip to be stored inside the body when in use. The "LM66" dry-free roller ball refill is extremely easy to use because it has just the right amount of dry time when writing. Intricate mechanism, precision machined brass body, moderate weight The "Lamy Swift" is the same as "German precision industrial product" which is very attractive to tickle not only writing instrument fans but also users who love automobiles and optics.