I have read about the benefits of using charcoal toothpaste and charcoal activated toothbrushes so when I saw this product, I did not hesitate to give it a try. All my life, I’ve been using the synthetic branded manual and electric toothbrushes and have no complaints about using them. The first time that I brushed using this charcoal toothbrush, it was a bit weird to feel the wood texture in my mouth. But now I'm getting used to it. The bristles have an excellent feel, not too soft or stiff. I have always been using the soft-bristled toothbrushes so this works really great for me. However, it's too soon to know if there will be any whitening effects on my teeth. Overall, the Ulula Bamboo Toothbrush is a well-made sturdy toothbrush. I love that everything about it is eco-friendly, including the packaging, which is simple and neat. I am not worried about the bamboo handle getting rot given that it is frequently wet. I’m certain that it will be suitable and adequate to use for its 3-month life, which is the recommended time to replace the toothbrush. One package contains 5 toothbrushes. This will last you for 15 months or you can share with the family.