Amazon Basics All Purpose Rectangular Scrub Brush, Hard Bristle, Stiff Bristles, Sturdy, Ergonomic Long Handle, Durable, 2-Pack, White & Black

Customers find the scrub brush effective for cleaning various surfaces, including bathtubs and iron stains, and appreciate its high-quality bristles that are stiff enough for thorough scrubbing. The brush is durable, with one customer noting it held up well to hard scrubbing, and customers find it easy to use and clean. They consider it good value for money and like its size, with one mentioning it's perfect for hand use.