Little League® approved. Used exclusively in the World Series Complex and is the only detachable base that has been scientifically studied and proven to greatly reduce the occurrence of sliding injuries. Meets rule 1.06 mandating release style bases. Base top compresses to absorb shock and will dislodge if contacted with enough force that would typically cause an injury. Choose from four different breakaway strengths. Two-year limited warranty against defects in materials or workmanship.