Specification AutomotiveFitType : universal_fit AutoPartPosition : top Brand : Hyperlite BulletPoint1 : High quality:316L stainless steel + Aluminium alloy Guide. Metal brackets and guide rods are absolutely sturdy and will not bend easily if your boat hits it. Top quality, will not rust after long exposure can easily face seawater. All mounting components are made of 316 and 304 stainless steel. BulletPoint2 : THOUGHTFUL DESIGN: We wrap our aluminium square tubes in two rubber mats, which not only prevents damage to the hull, but is also durable, so you don't have to replace planks and carpets as often as you used to. Our U-bolts and mounting parts are made of 316 stainless steel, as are the bracket blocks that connect the trailer guide bars to the aluminium tubes, which are then fixed to the tubes with 316 stainless steel rivets. This mounting method is stronger and less likely to fall off. BulletPoint3 : Adjustable width: The width of these trailer guide bars can be easily adjusted, extending up to 13 inches. They are compatible with trailer frames less than 3 inches wide, 4-1/4 inches high, or 5-1/4 inches high. The metal support is a 1-1/2 inch square square tube BulletPoint4 : Flexible Installation: Our boat trailer guide-ons can be mounted on top of the trailer frame or below it, and the U-bolts fit both large frames and smaller frames. Properly center load your boat even in wind or side current conditions with this Aluminum alloy square tube guide, keeping your trailer sturdy BulletPoint5 : NOTE: Overheating of the 316 material U-bolts and nuts can result in a locked condition. Therefore, if you want to avoid the nut locking on the U-bolt, please apply lubricant on the U-bolt before installation. For buyers who fail to notice this problem and the mounting of the bracket fails, we can provide a free bolt replacement service. enjoy your shopping! BulletPoint6 : Manufacturer part number 50-55310 Color : Black CompatibleWithVehicleType : Trailer Department : unisex-adult ExternallyAssignedProductIdentifier : 6977207690454 ExternallyAssignedProductIdentifier1 : 054065766791 ExternallyAssignedProductIdentifier2 : 0054065766791 ExternallyAssignedProductIdentifier3 : 00719249553108 FinishType : Polished FitType : Universal Fit GpsrSafetyAttestation : 1 ImportDesignation : Made in the USA or Imported IncludedComponents : 316 Stainless steel Trailer Guide Poles*2, 20 Inch Aluminium alloy Guide*2,Installation package IncludedComponents1 : Galvanized Bracket IncludedComponents2 : Rubber Keel Roller IncludedComponents3 : nut InstallationType : Bolt-On ItemDepth : 3.5 inches ItemDisplayWeight : 0.9 pounds ItemName : Hyperlite HL Trailer Boat Guides (23660130) ItemPackageDimensions_Height : 109.22 centimeters ItemPackageDimensions_Length : 6.35 centimeters ItemPackageDimensions_Width : 20.32 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : boat-trailer-guides-and-rollers Manufacturer : H.O. Sports, Inc. Material : 316 stainless steel + aluminum alloy +PE Material1 : Galvanized Bracket Material2 : Rubber Keel Roller MaximumHeight : 21 inches ModelName : Boat Trailer ModelNumber : 23660130 MountingType : Trailer Mount NumberOfBoxes : 1 NumberOfItems : 1 NumberOfSteps : 2 PackageLevel : unit PartNumber : 23660130 Pattern : Solid ProductDescription : HYPERLITE HL Trailer Boat Guides (23660130) ProductSiteLaunchDate : 2023-02-08T23:09:18.854Z Size : for 3"x3" StreetDate : 2018-10-04T00:00:01Z Style : 8-inch SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 TargetAudience : unisex-adult UnitCount : 1 UnspscCode : 49000000 WarrantyDescription : YES