Dec 27, 2021 · NOKIN Amber Reflective Studs On The Motorway NK-1001 Amber reflective studs on motorway is used for dividing the road boundary,for safety,reducing the accidents,made from aluminium alloy attached with the reflective sheet made from the acrylic plastic sheet.This acrylic is a reflective prism glass style and available 1 or 2 sides on road stud.