To increase stability, the slots were initially designed to be compact, and the width can be cut as needed to accommodate fishing rods of different sizes. Actual tests show that the maximum vehicle speed the bracket can withstand is 45MPH while maintaining the stability of the bracket. Please feel free to use it. This product has been strictly controlled and tested by us. We pay attention to every detail and start completely from the customer experience. I hope you like it. Lightweight, easy to carry and store, a must-have for anglers. High-Strength Magnet with Protective Pad – Features a powerful magnetic base with a protective pad that ensures strong hold without damaging your vehicle’s paint. Secure at High Speeds – Designed to hold fishing rods securely at speeds up to 45 MPH, making it perfect for highway travel. Built-in Rod Slots & Elastic Strap – Equipped with rod slots and an elastic nylon strap to provide extra stability and prevent rods from slipping. Universal Compatibility – Adjustable design fits most fishing rods and vehicles, including trucks, cars, SUVs, and more. Durable & Weatherproof – Made from high-quality, rust-resistant materials, this rod holder withstands harsh outdoor conditions.