Improve your endurance, speed and accuracy with the Willem Punching Ball. Suitable for martial arts, like boxing, free fighting, Muay Thai or Taekwondo... Specifications:Main material: high quality PU leatherProduct color: Yellow, White, RedBall size: 350x180x180mm/13.8x7.08x7.08"Product net weight: 400gStretch length to: 225cm/88.6"Length including rope: 137cm/53.9"Usage method:Use a pump to inflate the ball (NOT full). Fix the spring ropes on both ends to floor and ceiling or left and right, which is very convenient and practical.Attention:The ball in the package is not inflated. You need to inflate it yourself after receiving the package.-There may be slight size deviations due to manual measurement, different measuring methods and tools.-The picture may not reflect the actual color of the item because of different photographing light, angle and display monitor.