The Vevor boat trailer guide is a heavy-duty guide-on kit designed to help keep boats aligned for smoother, safer loading. It features an adjustable width design for compatibility with ski boats, fishing boats, and sailboats. High-hardness steel construction and PVC pipe posts help improve durability, visibility, and surface protection during transport. Dual mounting options with U-bolts allow secure installation on a variety of trailer frames. This 2-piece set is built for reliable performance in demanding outdoor conditions.