Drop Steps for RB Series Running Boards, Fits all RB 10 and RB20 Running Boards. Allows for enhanced access to vehicle with a 4" drop step. Fabricated Steel Construction for durability. RB10/RB20 Drop Steps come with a Limited Lifetime warranty on materials and construction and a 5 year warranty on the Bedliner Finish. OE-approved protective bed liner coating for tough, durable performance Drop step surface area is 4 inches below main board for easier entry and exit Includes all needed hardware for a simple no-drill installation Fits all RB10 ad RB20 running boards (excluding Slim Line series) Longer RB10 and RB20 boards can accommodate 2 pairs Limited Lifetime warranty on materials and construction and a 5 year warranty on the Bedliner Finish.