High quality material. The dispensing gun is made of high-quality polymer engineering plastics and metal components, featuring a lightweight design for flexible operation and long-lasting durability. Function. Designed for applying various two-component adhesives or coatings by smearing or dripping, it helps achieve consistent mixing and prevents uneven blending of two-part adhesives. Perfect design. Ergonomically shaped based on physical principles for a stable structure, reduced hand fatigue, and ease of use. Smooth internal structure prevents clogging during use. Easy to operate. The cartridge slides in easily and locks securely with a lever mechanism. Squeezing the handles dispenses mixed adhesive smoothly. Simple to assemble and disassemble for quick maintenance. Usage. Compatible with 50ml 1:1 and 2:1 AB ratio adhesive cartridges. Suitable for use with glass, gemstones, ceramic, wood, and thermoset composites. Works well on most metals including iron, aluminum, copper, zinc, and electroplated surfaces.