Rintal Gamia Metal Extra Step Kit for Steel Spiral Staircase

Adds one painted-steel step with vertical metal tube balusters (no handrail) to a Rintal Gamia Metal spiral staircase kit, for floor-to-floor heights above the 13-step range. Up to three extra steps take the stair to 16 steps and 12' ⅞"; a center post extension is required above 10' 5⅝". Sold separately from the stair kit; order in the same diameter and color.