Aluminum Solar Studs Light Constant Bright Road Spike Aluminium Road Studs Manufacturer | Roadsky Traffic . Cast Aluminum Road Studs Reflector color Red, White, Yellow, Blue, Green or Customized Size 103*103*21 mm, 100*100*20 mm, 150*150*50 mm and etc. Resist compression ability ≧20 ton Weight 200 g ~ 600 g Reflector material PS or PMMA Body