That’s a *Manual Powder-Actuated Nail Gun Kit* - teal + black, in a hard carry case.
*What’s in the kit:*
1. *Nail gun tool* - Teal handle, black barrel. Drives steel nails/pins into concrete, steel, or masonry without electricity or air.
2. *Pins + cartridges* - Box of pink-tipped steel nails in foam cutout. The cartridges fire them.
3. *PPE + accessories* - Safety glasses, gloves, cleaning brush, oil bottle, and "Safety Operation Manual" in the lid. Everything you need to start safely.
*What it’s used for:*
Steel stud/track installation, electrical conduit, ductwork, shelving, and concrete/masonry fastening on site. Way faster than hammering or drilling + plugs. Common in construction, electrical, and fabrication crews.