Speed Bag Swivel Material: Metal construction for heavy duty use. This swivel is built to withstand constant punching and kicking of a speed bag for many years, delivering reliable, sturdy performance. Size: Chassis diameter 9.5 cm (3.74 in); hole distance 5 cm (1.97 in); hole diameter 0.7 cm (0.28 in). Professional Speed Bag Hardware Kit: Designed as a speed ball bracket for professional use, meeting the needs of both training exercises and professional users. Easy Installation: Complete Speed Bag mount kit with the required hardware, enabling quick setup and saving time and energy during installation. Key benefits Durable metal build provides longterm reliability under heavy training loads. Precise mounting dimensions support stable, secure performance with standard setups. Professionalgrade hardware kit included simplifies equipment setup. Userfriendly installation process minimizes setup time in busy training environments. Use scenarios In a professional gym or boxing club, mount the speed bag swivel to a ceiling or wall mount for frequent training sessions and volume punching drills. In a home gym, install as a spacesaving training tool to improve handeye coordination, reflexes, and cardio workouts. In rehab or conditioning programs, use for controlled punching drills to develop timing, rhythm, and progression in a safe, reliable setup.