Multi-Function Glue Injection And Silicone Sealant Gun

It is a manual tool used to apply a controlled stream of sealing or filling materials, such as silicone, latex, or acrylic sealants, from a cartridge. 
Key Features and Functions
Mechanism: It typically utilizes a ratchet rod or smooth rod mechanism to push the sealant through the nozzle of a standard 9-inch (300ml) or 10oz cartridge.
Design: The "cradle" frame holds the cartridge securely, while the trigger and spring mechanism deliver the pressure needed for application.
Utility: Many models include a ladder hook for easy storage on a ladder while working and a built-in seal punch to open the cartridges.
Applications: It is essential for home improvement tasks like waterproofing, sealing joints, filling gaps, and general bonding projects