The Gared Collegiate 2000+ breakaway basketball goal has an internal spring mechanism which is designed to absorb impact from the ball and players. Precision fly back action returns the rim to its original position after every dunk. It is highly recommended to use a breakaway type goal on every glass backboard to protect the board from impact. This break-away goal has a dual spring return system and a positive lock detent which keeps the rim secured in the playing position.