I used it for a last minute connection between a rack room and a mixing room. It was too late for putting analog cabling so we use a "lost" ?" conduit, that was already inside a wall, and ran a CAT6 cable. Problem solved.
It is made of a hard-to-bend-or-break metal and painted with a high gloss red colour that is almost hypnotic.
Jokes apart, I highly recommend this box and its counterpart (3FB) for 4-channel snakes whether permanent or temporary.
Five Stars!
PS. Bought it from Mexico. It arrived as fast as UPS could fly even in spite of the contingence times. Kudos to the expedite Thomann shipping service!