【TOUGH BUT SOFT BRASS BRISTLES】Each bristle on this brake cleaner is made of copper wire to help clean brake calipers, shims, and other areas without harming the vehicle. 【BRAKE CALIPER CLEANING】Remove brake dust, rust, and other debris from brake caliper castings. 【ERGONOMIC DESIGN】Molded ergonomic handle grip for easy usage, its curve design is for easy seizing. 【SLIM DESGIN】Product dimensions: 1.58 inch wide x 8.7 inch high x 0.6 inch diameter. Allow working in small and narrow areas. The suspension hole at the bottom makes it easy to storage. 【TAIWAN DESIGN & MANUFACTURE】We provide you quality assurance tools with 12+10 months after-sales warranty (10 months warranty by register) support. Help you to achieve a satisfactory shopping experience.