Here are some videos with descriptions of different types of bits and their mechanics.
These videos do not encompass all bits, and we do not necessarily agree with using a stronger bit to control a horse, in place of additional training / good horsemanship.
Options for Icelandic Horses include mullen mouth snaffles and pelhams. Icelandic Horses generally have low palates and may have other bitting problems that exclude use of jointed snaffles.
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