Fitness dumbbell bar with a secure connecting bar that prevents slipping during training and enhances safety. Dumbbell accessories crafted from steel and foam with precise detailing and fine craftsmanship, built to be strong and robust for long service life. Dumbbell bar joint made from durable material for extended use; screw design enables convenient installation and removal. Barbell extension bar effectively improves your strength training; suitable for home and gym use. Use scenarios: - At home: connect to existing dumbbells for safe, stable curls, presses, and rows with a slip-free grip. - In the gym or studio: quickly install or remove the extension bar between exercises, saving time and maintaining safety. - For variety and progression: add the extension bar to diversify workouts and challenge different muscle groups.