Oxford 100050358 College block A4 +, squared / edge, 80 sheets, 90 g / m² Paper Optics, 10-pack, dark blue (Office supplies & stationery)
Is just simply a great block due to higher paper density compared to other blocks. Too bad I found, however, that one of the blocks contained significant shortcomings and that at a price in excess of 2 per piece I find something very unfortunate.