The Vantech H1 steel system can hold up 250 lbs per bars. The Cross bars is 2in x 1in rectangular 14 gauge heavy duty. The Cross bar is protected by non-slip plastic bar guard on top. Mounting upright are 11 gauge at the base and are galvanized before powder coating. The Mounting uprights are 8in extra wide base at 16.5in total height. The Base is welded complete onto upright post for complete seal. There are 4x 1in eyehook per mounting upright There is absolutely No drilling required, secured with drip rail clamps. The drip rail clamps are 11 gauge steel 2in x 8in dipped in rubber top and bottom. Rubber cap on the upright post prevents wind noise and water leakage. The system Includes 5in ladder stopper to prevent ladder from sliding forward, Ladder stoppers are galvanized and rubber dipped. The system also includes 5.5in ladder guide for easy bungee and tie-down. Ladder guide are galvanized and rubber dipped. Easy turn knob allows quick adjustments and removal of ladder stopper and ladder guide. Velcro straps secure ladders within seconds up to 75 lbs (Bar guards, Ladder stopper, ladder guide, velcro straps only available in our 2,3,4 bar systems). System powder coated for additional protection against rust. The H1 system is made to be vehicle specific for 100% fitment.