Metal harrow or plastic harrow?

The original harrow was made of iron with a smooth underside. You can use this to scrape the dried-up dirt off the horse. With an iron harrow, it is important to always brush in the direction of hair growth, otherwise the fur will become dull and break off. There is also Eisenstriegl with a handle and a jagged underside, as well as iron spring bars. Both are particularly suitable for removing really stubborn incrustations. But you should be very careful with it as the horse's skin is sensitive. Many horses therefore do not like the iron harrow. In addition, you should not use it on bony areas, but only on the muscles.
The plastic harrow has the advantage that it is significantly lighter and the material is "softer" than with the metal harrow. The plastic curry comb is the most common model and is available in many colors and sizes.

The rubber curl helps with the change of coat

In many cleaning boxes there is also a rubber curry comb in addition to the plastic curry comb. This is also jagged on the underside. Since the rubber "sticks" to the fur, it can be perceived as uncomfortable by some horses. This effect is good in changing fur, because loose hairs are gently pulled out. You shouldn't use too much pressure on the rubber curl. Due to its flexibility, a rubber curl is also suitable for cleaning encrusted, bony areas such as the joints. Here, too, you should clean with little pressure and rather allow a little more time.

What actually is a needle harrow?

The hedgehog or needle harrow is particularly suitable for longer fur. Because this curry comb has longer, thin nubs that look like spikes. Hence the harrow got its name. The knobs penetrate the horse's skin through the thick fur and thus cause a strong massage. Therefore, apply the needle harrow with little pressure and pay attention to the reaction of your horse. Incidentally, the needle harrow is not suitable for brushing manes or tails. The individual knobs are too tight for that. You'd be pulling out too much hair.