The 4oz. medium soft plastic hand injector holds enough plastic to fill most all the aluminum molds. For best results and to extend the life of your aluminum injector, disassemble and clean thoroughly after each use. Always use a long sleeve shirt, safety gloves and safety glasses when using any hand held injector and when handling hot plastic.
Please note: This injector does not use a locking pin to hold the nozzle on. Additional care and awareness should be used when using it.