I bought these because I needed an inexpensive white cotton pocket square, and this pack was a good deal.  They are all white, and each has a similar, but slightly varied border in red, blue, and light gold.  Good quality, inexpensive, and just the right thing to add detail to a suit pocket.  I'm guessing they also work well for nose-blowing, but I have not subjected them to my rigorous regimen of testing at the time of this writing.