A backboard is a piece of basketball equipment. It is a raised vertical board with a basket attached. It is made of a flat, rigid piece of material, often plexiglass. It is usually rectangular as used in NBA, NCAA and international basketball. But many backboards may be oval, particularly in non-professional games.
A basketball hoop is flexibly mounted to a basketball backboard via a flexible connection between the backboard and the connection supporting the hoop. The shock of a basket or a dunk is absorbed by the connecting part, so that the rim goes back to a horizontal position once again.
Diagram of basketball backboard
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