- description
- A bumper without a solenoid — it deflects the ball on contact through the spring tension of its ring alone, without the powered kick of a [[gameplay-feature:pop-bumpers]]. Passive bumpers predate their active counterparts and were among the earliest playfield obstacles, appearing on machines from the late 1930s onward. They add gentle redirection rather than violent repulsion, nudging the ball into new trajectories without the dramatic speed boost of a powered bumper. Over 650 IPDB-cataloged machines feature passive bumpers, making them one of the most widely used mechanisms in pre-[[gameplay-feature:flippers]] and early flipper-era playfield design.