Breakthrough Clean Technologies BCT Copper Remover - 6oz Pump Spray Bottle. Its virtually odorless and biodegradable formula easily removes copper fouling and minimizes future copper build up without giving off any harmful or strong offensive odors found in other copper removers. Usable on all types of bore steel and wont etch or harm the barrel. Specifications for Breakthrough Clean Technologies Copper Remover - Pump Spray Bottle: Manufacturer: Breakthrough Clean Technologies Quantity: 1 Country of Origin: USA Features of Breakthrough Clean Technologies Copper Remover - Pump Spray Bottle Quickly breaks down copper fouling and minimizes future copper build-up 100percent ammonia freeUser safe and eco-friendly Safe on bore steelWont etch or harm barrels Virtually odorless and is biodegradable and petroleum-free made in specialized factories Package Contents: Breakthrough Clean Technologies Copper Remover - Pump Spray Bottle Breakthrough Clean Technologies BTCR-6OZ: BCT Copper Remover - 6oz Pump Spray Bottle