Corrosion-resistant polished marine grade stainless steel with silicone wraps to protect the rod while avoiding scratches. Salt water corrosion resistance, sunlight does not fade. One-piece welding? Fishing Pole Holder and U-shaped connecting piece are welded together, preventing traffic accidents caused by breakage of Fishing Pole Holder and square tube after long time bumps. Buffer foam? When the road is bumpy the foam at the bottom cushions the impact of the fishing rod and quick release pin to prevent the bottom of the fishing rod from wearing and also prevent the rod from popping out of the fishing rod support? D-type Anti loosening quick release pin? There is no need to worry about the steel pin loosening and falling out in any road condition? Two types of bolt sets? 1: Quick Release Pin – achieving quick disassembly and quick installation. 2: Anti loosening bolts – securely installed to reduce abnormal noise and looseness? Specifications and Design? 1? Suitable for 2 Inch Trailer Hitch Receiver? 2? 5 tubes to store more fishing rods? 3? Corrosion-resistant marine grade stainless steel 4? Two angle adjustments, vertical or tilted? 5? Store 1.57 diameter rods. 6? The bottom hollow design, ventilation and air.