Go Rhino Drop Steps for RB Series Running Boards RB10/RB20/RB30, One Pair Model 69420000PCGo Rhino Drop Steps for RB Series Running Boards RB10 RB20 RB30, One Pair Model 69420000PC Drop Steps for RB Series Running Boards. Fits all RB10, RB20 and RB30 Running Boards, except for Slim Line versions. Allows for enhanced access to vehicle with a 4" drop step. Fabricated steel construction for durability. RB Series Drop Steps come with a Limited Lifetime warranty on materials and construction and a 5 year warranty on the Textured Black Finish.