Convenient for installing the brake body. As a bonus, I'll include a spacer for transporting your bike. Shipped with tracking. The perfect tool for adjusting disc brake calipers. Disc Brake Alignment Tool Rotor Bike Disc Alignment Tool Rotor Caliper Centering Gap Setting Bicycle Disc Brake Aligner - For Rotor Disc Brake Gap Setting Adjustment Tool - Brand: Deemart - Product Name: Disc Brake Alignment Tool - Application: Brake caliper adjustment - Model: Brake Gap Regulator Thank you for viewing.