Very sturdy. It seems identical to my Pelican cases.
Provide IP67 level dust and water protection for drones, audio mixers, or small desktop computers using this customizable Weatherproof Hard Case!
The IP, or Ingress Protection, rating is a two digit value that indicates the level of protection provided by the cases. The IP67 rating of this case means that it provides complete protection against dust and other solid particles and that it can withstand up to 30 minutes of submersion in water at up to 1 meter depth.
The case is constructed of impact and ultraviolet resistant polypropylene and has a fully customizable foam interior for superior shock protection. A pressure relief valve allows you to slowly and safely equalize the pressure inside and out.
https://www.youtube.com/watch?v=F6Pq65sO0UI
Key Features
Designed and developed to the comply with the highest safety protection standards
Waterproof up to 1 meter depth for 30 minutes
Shockproof design with fully customizable foam interior
Total protection against dust and other solid material
Ultraviolet and impact resistant material
Pressure relief valve allows for gradual pressure equalization
Seal design provides IP67 level protection
Ergonomic, rubber covered handle
‑4 ~ +194°F (‑20 ~ +90°C) operating temperature
1739 cu in (28.5 liter) internal volume
73.9 lbs. (33.52 kg) maximum buoyancy
18.9" x 16.3" x 8.5" (479 x 415 x 217 mm) external dimensions
17.64" x 13.58" x 7.32" (448 x 345 x 186 mm) internal dimensions
Weighs only 12.8 lbs. (5.81 kg)
The same box is offered by several companies. This one was rebranded as Amazon Basics, but you can remove the brand.