A Core deposit is a form of deposit you pay until returning your old part. If you don't have the core at the time of purchase, you must pay the core charge. That charge is refunded to you when you return the core.
Bosch Perfect View Beam Wiper Blade
Precision-tensioned steel spring: Responsible for consistent pressure across the blade for improved performance vs. standard blades.
Symmetrical wind spoiler: Utilizes air flow to keep the blade from lifting off at high speeds and protects the spring from snow and ice build-up.
Graphite treated rubber wiping element: Graphite treated rubber to reduce friction and noise.