The Homebase Essentials Caulking Cartridge Gun makes applying any amounts of sealant or adhesive an easy and clean job. Suitable for DIY or professional use, the metal construction has maximum strength and durability and is compatible with both standard size sealant cartridge tubes and also larger trade industrial cartridges with a maximum length of 230mm. It features a hexagonal rod with hooked ends and trigger operation for maximum control to prevent a mess when applying the mastic.