KEEL ROLLER 10" Black (86410) Tie Down Engineering Keel Rollers assist in guiding your boat onto the trailer, while Buffers support your boat. Side Rollers and Dumbbell Rollers are designed to support the side of your boat while it is on the trailer. Keel Roller protects your boat from cuts and abrasions while absorbing the impact of hitching and launching. Allows your boat to roll smoothly on the trailer and spin freely to decrease drag while launching your boat Molded black keel roller allows your boat to roll down smoothly on the trailer and spin freely to reduce the dragging while launching your boat. The KEEL ROLLER 10" Black (86410) is a simple addition to your boat trailer transporting, and protecting your boat much easier! A bunk trailer with a few of our keel rollers considerably lowers the effort required to launch and retrieve your boat. It shifts some weight from the carpeted berth to the roller, producing a cushion between the vehicle and trailer. Key features: Strong, reliable, and high-quality material Constructed for quick and simple use Improves boat engine performance Functional in marine environments Specifications: Brand: Tie Down Engineering SKU: 34-86410 Weight: 2.60 LBS Unit Of Measure: EA Manufacturer Part Number (MPN): 86410 Condition: Brand New Quantity: 1