D-L Wheel Bearing Protector is a snug fitting steel dust cap designed to protect and extend the life of your wheel bearings. It features a grease zirk for easy and frequent greasing, along with a built-in pressure relief valve that allows excess pressure to escape, ensuring optimal performance. The protector is zinc-plated for durability and corrosion resistance, and comes packaged two per card. This reliable accessory is an essential addition for maintaining the health of your wheel bearings and ensuring smooth operation. Model Number: 6332