![1:1 ratio for 25 ml cartridges High Performance Dispensing Guns](http://www.healthcaresupplyline.com/cdn/shop/products/imp1-1-1-25_{width}x.jpg?v=1658953483)
The impression gun is used to discharge the impression materials and bite registration materials from cartridges.
Its release lever and a plunge, are coordinated simultaneously to load and remove the cartridge and a trigger to easily dispense the material.