Trailer Wheel Hub Bearing Protector 2PCS 1.980 Inch Diameter Stainless Steel Axle Cap Features： 1、Strong Performance: The protector caps are made of superior stainless steel, aluminum alloy material and resistant to oxidation, providing strong strength under heavy loads and high shields on both sides to keep the lubricant in and contaminants out. 2、Premium Material: The caps adopts high grade stainless steel material with high strength, wear resistant, scratch resistant, and other excellent characteristics, ensuring durability and a long service life. 3、Auto Check Function: Monitoring the grease level anytime with a painless effort by simply taking the cap off, providing special guard for your bearings. Easy and simple installation on your wheel for maximum and comfortable performance. 4、Long Lasting Durability: Constructed specifically to provide maximum performance, the protector covers are designed to protect boat trailer bearings with a diameter of 1.980 inches, ensuring durability and reliability in all conditions. 5、High Reliability: Keep water out and grease in with this bearing protector, providing an easy way to protect your well and maintain the performance of your boat trailer bearings for years to come. Specification： Item Type: Trailer Wheel Bearing Protector Material: Stainless Steel + Aluminum Alloy Size: 1.980in Diameter Fitment: for Boat Trailer Package List： 2 x Bearing Protectors