If you own a Cressi Pneumatic Spear Gun, then you know that it takes oil to build up pressure for the spear shaft to fire. When out spearing fish do not get caught without some spare gun oil to replenish low-oil from a leak. The last thing you want is to fire the gun and find it only wounded the animal because you were low on oil. This handy 100 ml | 3.38 fl. oz. squeeze bottle of pneumatic spear gun oil comes with a convenient nozzle for easy introduction of oil in your gun barrel. Oil is specially formulated for Cressi Pneumatic Spearguns and makes a great save-a-dive-kit item. The Oil is made in Italy by Cressi, an Italian brand pioneer in freediving, scuba diving, and snorkeling equipment since 1946.