SMANOW Running Boards Compatible with 2007-2018 Chevy Silverado/Gmc Sierra Regular Cab,2019 Silverado/Sierra 2500HD 3500HD, Round Tube Drop Down Style Step, Heavy Duty Carbon Steel. BR-S-25525 significantly enhancing the load-bearing capacity

significantly enhancing the load-bearing capacity of the main beam

The tube is 2 inches with support up to 500 LBS

5" lower than the rocker

ANTI-RUST MATERIAL: These Running Board Were Made with Carbon Steel

with a static load of 800 pounds and a dynamic load of 500 pounds

SMANOW Running Boards Compatible with 2007-2018 Chevy Silverado/Gmc Sierra Regular Cab,2019 Silverado/Sierra 2500HD 3500HD, Round Tube Drop Down Style Step, Heavy Duty Carbon Steel. BR-S-25525 significantly enhancing the load-bearing capacityFITMENT: Running Boards Compatible with 2007 2018 Silverado Sierra 1500 Regular Cab, 2007 2019 Silverado Sierra 2500HD 3500HD Regular Cab, 2019 Silverado 1500 LD, 2019 Sierra 1500 Limited. ONLY Fit for Regular Cab with 2 Full size Doors. NOT fit Diesel Model & 2007 Classic Model. WIDE DROP STEP: Drop Down Style Running Boards, Drop Off Making It Easier To Enter And Exit. Durable Non slip Steps Provide More Protection. MATERIAL: The Surface Features A