The Dia-Compe AD-990 BMX U-Brake Caliper in Blue is a high-quality, durable brake caliper designed specifically for BMX bikes. Made of lightweight aluminum and featuring a U-brake design, this caliper provides reliable stopping power. With its sleek blue color and compact design, it adds style and functionality to any BMX bike. This set includes one caliper and is compatible with BMX bikes, making it a must-have component for riders looking for top-notch braking performance.