If boxing, MMA, or martial arts is your passion, you'll love this speed punching bag by Randy & Travis Machinery. Build your stamina and speed with this professional-grade spinning bag with a full 360 degree-rotation. Crafted from PU leather and lined with four layers of poly-cotton material, this speed bag is built to take whatever you dish out. Its hanging strap is double-lined to discourage splitting, extending its useful life even further. It's light in weight, giving you zippy rebounds, uppi