Zebra Hand Crafted African Shield and Spear It stand just over 3 ft from the Mgobo or center pole The Assegai or Spear is 3 ft long with a 4in tip The Knob-Kerrie or ball club is 3 ft long as well. The Shield is made of wood and is 2ft tall and 12.5 in wide. It is perfect for standing against the wall or for hanging.