For protection, horses usually wear "splint boots" on the cannons of their lower front legs as well as "skid boots" on their hind fetlocks. Bell boots, which wrap around the pastern and protect the hoof and coronary band, are also usually seen, sometimes only on the front feet, other times on all four feet. Polo wraps are also another form of protection that is used, this helps give support to the tendons and ligaments, and prevents bruising and irritation. These can be used on all four legs but if wrapped improperly can cause damage.