The brushes are too soft so they bend too easily. They need to be stiff enough to push between your teeth without bending. The little case that holds10 brushes is a nice idea and can easily be carried in a pocket or purse. But the brushes are still not worth the price. They simply don't do the job.
I always use dental floss at night but these are great to carry along with you to quickly get rid of bothersome food that gets caught between tour teeth! They are not too thin and slide easily through normally spaced teeth. Not good for very tight spaces. Comes with a compact carrier.