Adjustable Small Staircase1. 5 diameter stainless steel handrails with end bumpers Fast easy height adjustments with self indexing spring action plungers and numbered height indicator strips (no holes to line up or count) Second knob removes any side to side play for a rigid upright Hardwood plywood base with durable, UV satin, topcoat finish Assembled with steel fasteners (No glued wood dowels) All edges are banded with tough, Slate Gray, edge banding 2 full width safety