1. A revolutionary new base designed to help minimize sliding injuries. 
2. 15"x15"x 2 1/2" with slop sidewalls to help prevent leg and ankle injuries. 
3. No elevated corners or sides that can jam a player's arm, leg or foot. 
4. Molded all-rubber construction insures that runner will not come in contact with steel components. 
5. Two ground receptacles could be selected.
Height: 2 1/2 inch.