The Castek Rod Caddy is the ultimate fishing rod rack for light freshwater tackle (We recommend it for SPINNING RODS/REELS only. Please see end of description for Rod Size Compatibility!). It is a TANGLE FREE wall-to-water rod management system that is like a tackle box for your rods. Made from super tough anodized aluminum alloy and impact resistant ABS copolymer, it organizes and protects your rods while in storage, in your vehicle, and at the water. Use the included mounting brackets (Screws Not Included) for mounting vertically, horizontally, or anywhere in between. Mount it to your wall, truck, car, boat, ATV, RV, and more! It is lightweight and easy to carry up to 4 rods in one hand. And the automatic stand keeps your rods upright when at the shore to keep your reels and rods out of the dirt. Works with most freshwater rods including spinning, baitcasting, fly rods, ice rods, and more! This is NOT RECOMMENDED for Ocean, Steelhead, Catfish, or any rods with handles longer than 17". ROD SIZE MEASURING GUIDE: Measure the diameter (thickness) of your rod 18" up from the bottom of the rod. The diameter must be 1/2" or less for your rod to fit in the Rod Caddy. When using the Baitcaster height adapters, the diameter must be measured 15" from the bottom of the rod. The handle itself can have a diameter of up to 1 1/2" to fit in the base of the rod caddy. US Patent D934587