Road studs are commonly known as highway studs or railways studs or highway markers.Road studs are a type of traffic safety product fixed in the middle of lane lines or yellow double-line for, through its retro reflection, reminding drivers to drive their vehicles along with the lanes. Features :- ~ Reflect Range : 360 degree with no reflect dead corner; ~ Installation : Embed; ~ Brand : Tristar; ~ Made : Taiwan; ~ Marking : Anti Skid; ~ Diameter : 100mm; ~ Reference Standard : SIRIM MS 1719:2003 for Raised Pavement Marker (RPM) Appendix H Compressive Strength Test; Tristar Anti Skid Glass Road Stud market and sale by Flexijoint Industrial Marketing & Services, Kuala Lumpur, Malaysia.