Firmly supports a player standing on top, but dislodges and separates from the smooth, low-profile bottom plate upon contact from sliding players. Allows umpires to easily make calls as the play progresses. Design and Details: Top reconnects to the underplate in seconds after the play ends Heavy-duty rubber pad withstands the traffic of spiked shoes as players run the bases Bases insert into standard anchor systems, no special installation required Steel stanchions fit both male and female anchor systems 3 White dislodging bases, 3 ground anchors, and 3 base plugs included Additional Details: Official-size 15"x15" bases; meets Little League(R) requirements and complies with Little League(R) rule 1.06