The Bisley Silicone Gun Oil is for leather and plastic washers in airguns. A light overall application gives lasting protection to all metal and wood surfaces of all guns. This non-gumming oil is highly water repellent and anti-corrosive.Gun Oil Features30ml CapacityProduces a high sheen finish on all airgunsStops the corrosive effects of fingerprints on airgun barrelsHighly water and dirt repellent Beneficial to both barrel and stock Does not evaporate like mineral oils Silicone gun oil available in a small 30ml dropperDo NOT use on metal to metal partsBisley Ref.MPN: BIOSB, BIOSASizes: 30ml, 130mlPM Ref: 701101