Experience a perfect training with the Balazs® Lightning™ Gyro Speed Bag. This Speed Bag comes with a replaceable bladder. The Balazs® Lightning™ Speed Bag is made of top grain leather for super smooth and controlled strikes and a tight top loop, for excellent rebounds and control. The die-stamped leather panels are all of the exact same size for perfect balance. No welting at the seams to throw your strike off, or scrape your knuckle. It features the Balazs® Super Valve for holding air and a replaceable rubber bladder. This light-weighted speed bag gives you a crisp response.

It's available in four sizes: Peanut (Extra Small, 8 inch x 5 inch), Sonic (Small, 9 inch x 6 inch), Jet (Medium, 10 inch x 7 inch), Rocket (Large, 11 inch x 8 inch).

See Boxing Basics for speed bag techniques.