A type of horse bit is a SNAFFLE, which is a seven-letter word. A SNAFFLE bit is a type of bit used in a bridle for a horse, and it is usually made of metal or a combination of metal and rubber. It has two side rings that attach to the reins, and it is designed to be gentle on the horse's mouth. The SNAFFLE bit is one of the most common types of bits used in riding horses, and it is often used for training purposes.