They are super. Reusable washable
I was pleased with these and they seem strong and long lasting. I was also very pleased to find a more environmentally friendly brush. However, they feel smaller that a Teepee green.
Really good. Shame I had to get them shipped to UK from Germany. Meaning the carbon footprint is really bad
I love these interdental bamboo brushes. They are a little more expensive than the plastic ones but a lot more durable. And much better for the planet! I use the discarded 'stalks' in the bottoms of flower pots, or you can compost them.