Your ride's ability to stop on a dime is possible, thanks to a part called the brake drum. Usually, this brake part can be found bolted to the rear wheels as opposed to the disc brakes, which can be found at the front. The best way to explain how it works is by imagining a pair of shoes that presses against a rotating floor, wherein the latter is the drum.
The whole drum assembly is composed of two brake shoes, a piston, an adjuster mechanism, an emergency brake, and various springs. When you hit your ride's brake pedals, the piston pushes the brake shoes hard against the inside of the drum and stops the wheel. When you release the brake pedals, the springs recoil and retract the shoes off the drum. This, in turn, lets your drum turn again along with the wheel. But as this process repeats many times every time you drive, your brake drum's inner lining gets worn out. And if the drum's inner diameter reaches the allowable maximum, it's already dangerous to use.
So if you're looking for a replacement, make sure that it's better than your stock brake drums. Get one that's made of high-strength steel and cast iron lining for better friction. Moreover, purchase from a trusted auto parts store that provides excellent customer service, low prices, and first-rate quality. This way, you can have the big breaking power that you've always wanted without the big price tag to match.