90cm car stopper (or wheel stop/parking curb) is used to guide drivers to park accurately and safely, preventing vehicles from rolling too far forward and hitting walls, other cars, or damaging property in garages, driveways, and parking lots. Its 90cm length provides a good boundary for typical parking spots, while durable materials like PVC or rubber with reflective stripes ensure high visibility and resistance to impact, offering clear physical cues for precise parking.