Falken 76042 - punched pockets A5, 100 pieces dokumentenecht (Office supplies & stationery)
Had no problems so far with the Sheet protectors, because I used them in folders with 2-ring mechanism. Today I wanted it in a Veloflex Ringbuch Comfort / 4151080 DIN A5, I also bought some time ago from Amazon, but not yet used to use, but they did