Combs - apart from the color, materials, size and distances of the teeth, then at first glance all combs are the same. This assessment, widespread especially in consumer circles, is not only bad but also dangerous. Brushes - next to combs, brushes are probably the most used tool. Here, too, several things need to be taken into account. Combs - a quality comb must not have any sharp corners and edges, for example. Brushes - individual bundles of bristles should not be arranged too densely, they should not be too numerous themselves (number of individual bristles).