These are the toughest liquid plastic injectors we've ever seen! N2 injectors are made in the USA and constructed from heavy gauge aluminum (excluding the nozzle pin, which is stainless steel). They're far more durable than any of the other injectors we've encountered.
N2 injectors feature an easy-to-use bayonet style locking nozzle. The exterior nozzle diameter is approximately 5/8", so N2 injectors will work with every Do-It CNC and Essentials worm mold we carry. Every N2 injector comes with 2 spare O-rings.
Please note: Heat resistant gloves should always be used when pouring worms and other soft baits with plastic injectors.