Decent strong floss
Like this floss. I was previously using glide because I have trouble flossing between some of my teeth, but I would routinely break the floss during a floss session. The Ollie floss is able to floss those tight spaces but is also strong enough such that I haven’t had it break on me over the past month of using it. Definitely recommended for those that have tight gaps to floss and have trouble with other brands routinely breaking.