The Smart Grooming Smart Tails Tail Rakes are humane tail thinners for horses. By running the rake down the sides of the tail, you will achieve a 'pulled tail' effect, but without causing any discomfort to your horse. There are blades on the insides of the rake, which means that the hair is cut at intervals and not pulled out by the root. The blades are on the inside of the comb, which means it is safe for you and your horse.
Use evenly down the sides of the tail starting at the top and working down, blend into a tapered look towards the end of the dock. If you are not sure of the finish you would like, do a bit each day and then damp down and tail bandage for an hour or so. Check and then do a bit more until you get the finish you require. If you want a more natural finish and just looking tidy, choose a coarse or a medium grade. For a closer finish choose fine, although a medium may be needed to start with if the tail is very thick.