high quality stair nosing. aluminum and bronze |tmhardware.com zero #2673 traction tread stair nosing with abrasive or rubber traction provides a detectable warning for stairs and ramps. they are also available with integrated photo-luminescent tread. they can be applied for indoor and outdoor applications. treads have a 3" depth .5" riser and length can be custom cut to size. comes in two metal finishes.