Each travel charcoal toothbrush measures approximately 4.5 inches long when folded, making it easy to fit into a travel bag. This folding design can prevent the bristles from being exposed to the air, avoid getting dirty, and keep them sanitary.Each travel-size toothbrush's length is approximately 7.7 inches before folding.The toothbrush handle is thick and non-slip, fitting in your hand palm. The overall design is like a caterpillar, smooth and easy to grip.Our bristles are medium soft. Using a toothbrush with medium bristles will keep your mouth healthy by removing plaque and food remnants, and avoiding any damage to your teeth while removing plaque.Can be used as a disposable travel toothbrush or as a regular household toothbrush.