COMBO PUNCHING BAG - The freestanding punching bag combination of Century BOB XL and Century Wavemaster punching bags is interchangeable with a solid base measuring 24” Diameter x 19.5” tall that can be filled with sand or water BOB XL -The larger version with more torso area to punch or kick, this realistic body opponent bag is ideal as a boxing dummy as it rests atop a punching bag stand ORIGINAL WAVEMASTER -This 24” tall unit comes with a 13” diameter for a large striking surface whether using as a kicking bag or MMA punching bag ADJUSTABLE HEIGHT - Easily raise or lower the BOB XL or Wavemaster punching bags as they go from 60” - 78” to fit your home training needs MADE IN THE USA - When you buy a heavy duty boxing bag with stand as a punching dummy, you are supporting a US Company that provides a punching bag of the highest quality lead free materials SHIPS IN TWO BOXES - Please be patient, both boxes will ship but may be a day apart.