This Irion caulking gun (model BC-HPS56) is a solid, ergonomic tool for all your sealing and caulking jobs. It's designed for standard 10.5 fluid ounce (310 ml) cartridges, which is the most common size out there. The gun features a half-pipe design with a rotary carriage and a handy ladder hook, so you can hang it up when not in use. The lever is anatomically shaped for a more comfortable grip and less hand fatigue, especially during bigger projects. There's even a built-in tip cleaner to keep things neat. It's red and black in color, sturdy, and reliable – whether you're a professional tradesperson or a weekend DIY warrior, this gun makes applying caulk, sealant, or adhesive much smoother and more controlled. A straightforward, no-fuss tool that does its job well.