He had a muffler tied to a sturdy steel tripod and used it as a punching bag ,and he kicked and punched it over and over until there were several dents within th body of the muffler. Sweat and determination was seen on Bankai's face as he struck his target over and over for practice in long fights where endurance was needed. His fists and legs repeatedly crashed into the steel surface. He struck it with the back of his fist bent down low and hit it upper cuts and round house after round house. He tried hitting the same spot over and over and test the integrity of the muffler and slowly with each strike it caved it much to his delight. He took in one deep breath and closed his eyes as he sat on the grass and started to meditate.