This plecs are much more forgiving than the thicker versions and these are really good. They are also slightly easier to grip and keep in place than smooth plecs which helps stop them twizzling around in your hand.
Of course, because they are thinner, you will probably go through them faster than a thicker plec but at this price, it's best to view these as consumable items. Ten will last you a while. Yes, they only come in small plastic bag rather than in a snazzy holder, but do you really need a case for your picks? Probably not. Good value and robust enough for the price. Particularly ideal for learners.