The TOOPRE Bicycle Disc Brake Pad Gap Adjustment Tool is a compact, foldable tool designed to help align disc brake calipers and maintain an even gap between the brake pads and rotor. Made from 304 stainless steel and aluminum alloy, it is lightweight, durable, rust-resistant, and easy to carry. By keeping the pads parallel to the rotor, it helps reduce brake rubbing, noise, and uneven piston movement, making it ideal for mountain bikes, road bikes, city bikes, and e-bikes.