McKee's 37 All In One Headlight Restoring Polish is a one-step cleaner, compound and polish for plastic headlight lenses. Formulated using an advanced blend of micro and diminishing abrasives, McKee's 37 All In One Headlight Restoring Polish makes multi-step headlight polishing systems obsolete. In one simple step you'll be able to restore yellowed, dull, faded plastic headlight lenses to like-new condition, increasing nighttime visibility and reducing glare.