Carbon Express Bow Square Pro. Includes metal clips for secure placement. Works on recurve and compound bows. Specifications for Carbon Express Bow Square Pro: Manufacturer: Carbon Express Color: Red Features of Carbon Express Bow Square Pro: Critical for precision bow tuning Includes metal clips for secure placement Works on recurve and compound bows. Package Contents: Carbon Express Bow Square Pro The Carbon Express Bow Square Pro is a quality addition to the Carbon Express lineup. For more great deals on Bow Tuning & Archery Accessories by Carbon Express please browse our Carbon Express Archery Equipment page. Carbon Express Bow Square Pro