This Simple Tread kit is the perfect solution to restore an old and worn staircase to a vibrant new shine. Without affecting the existing staircase structure, these treads and risers are installed directly overtop of the existing stairs. This leads to a perfect project for DIY's that won't disrupt day-to-day living. It can be completed in as little as one weekend! The treads and risers have a beautiful consistent oak surface which can be stained or varnished to compliment your decor. This kit can be used as is for a closed stringer staircase (ends of treads are hidden by stringers). For an open stringer staircase, use a Simple Tread Bullnose Cap to easily finish off any exposed edges.