Henke Iron Injector – Iron injector with a unique finger hole grip and bottle attachment. Luer fitting. Bottle attachment with basket protects the medicine bottle during usage. This premium syringe has a precise and durable stainless steel metal piston (without o-ring on the piston) and a high precision glass barrel. Therefore maintenance issue with the o-ring on the piston is avoided. Syringe can be converted into tubing syringe by changing the bottle attachment into a tubing attachment.