2021 Solar Road Stud With Shank-Nokin Motorway Road Studs. 4.Solar Cat eye road stud with shank on the bottom can fixed to the road by the anti-twist stem for stability. 7.The reflective road stud is h igh quality with competitive price. 2.The reflective road stud is made of ABS material and can bear capacity over 16 tons. 2021 Al Solar road.