Goat Hair bristles are natural fibers that are very soft and can clean or prep delicate components. They degrade quickly when exposed to higher temperatures and are best used to clean fragile parts before or well after soldering is complete.

Hog Hair bristles are stiff, durable natural bristles that can withstand heavy scrubbing and higher temperatures than goat hair. They are commonly used to spread flux during a soldering operation due to their heat-resistant nature.

Horsehair bristles are natural, medium-stiffness bristles that are not abrasive and balance durability and gentle cleaning.