The cord stopper have a good look in black. I use them, lashing round rubber bands at the hem of the trouser legs. But they are best suited and what they promise.
The only negative feature is the promised price of $ 0.20 / pcs. and the real price of 2.09 for 10 pieces. These are only times ridiculous cents, but this again is an increase in delivery costs to pass. These are then even again "only" 70 Cent also, but it is for each delivery and the mass makes it known. Therefore, only 4 out of 5 stars.