RISER CONCORDE FITNESS STEP 2 PCSCompatible with 40 x 14 x 4 fitness step platforms, the Concorde Fitness Step Risers come in a pair and make a great addition to your fitness step to intensify and diversify your workout. These risers are constructed of recyclable high density polyethylene and designed to last without losing their shape under heavy weight. Description This pair of two Concorde Fitness Step Risers can be placed under each end of the Fitness Step Platform to add height.