On SUVs and wagons these parts are often specified as an accessory from new and are missing on used vehicles.
These parts are replaced when a net has lost its elasticity, when a tray has cracked under a heavy load, or when the original accessory was removed before sale. A cargo net that no longer holds is a nuisance rather than a danger, but a loose tray in the load area will slide and can damage the trim.
Match by body style and by floor configuration. A cargo tray for a vehicle with a movable floor or a spare wheel well has a different profile from one with a flat floor, and the tie-down positions change between model years. Check the mounting points in the listing photographs before ordering.