Standard industrial tape repackaged as writable (see image 1 for reference). This tape is intended for industrial recorders (see here one https://www.instagram.com/reel/C_0cgpFt6eH/?) where it performs at its best. Now, on a decent home recorder, it can be recorded just fine, but it is not the standard low noise consumer tape that other equivalents have, e.g., Philips. Also, depending on the batch, we may have drops (sound dropouts like when the tape is crumpled) or spikes (sudden pops in the sound) because it may happen that the magnetic coating has unsuitable mixtures. In 3 tapes that I have recorded, it has happened to me in 2 cassettes at one point. Not a deal breaker, but generally, the tape is a bit hit or miss. It can range from excellent recording to completely terrible in 2 meters of tape in the same cassette. Also, it's unknown what will happen to the recordings over time. Now, if you are not concerned about all this and just want a writable cassette, you can call it value for money (especially if you get good ones. Not all cassettes have issues, but sometimes it happens). Additionally, you can find it in other stores/marketplaces at prices up to 1.5 euros per piece (unbranded)