Just like our Motorway Road Studs price, we offer lightweight (approx. 350g) Motorway Road Studs reflectors too so that you don't face problems before and after installing it. Plastic road stud weight is 120 gram, Aluminum Reflective Road Studs weight is 380 gram, Solar Road Studs weight is 450 gram because inner side of this stud use high-quality battery for reflector led light.