Prest-O-Fit 1217.1187 2-0091 RV Step Rug Replacement Springs Made of rust-resistant zinc-plated steel Specifically designed to fit the following RV Step Rugs: Wraparound, Wraparound + Plus, Jumbo Wraparound + Plus, Wraparound Radius, Outrigger 18 In., Outrigger 23 In. and Outrigger Radius