Aluminum Road Stud- Square Design Description and Package Size: 101mm x 101mm x 20mm (stem length 50mm) Net Weight: 340 gram Color: Clear, Yellow, Red, Green, Blue Material: Unbreakable acrylic lens, High impact aluminum housing with mixed sands filled back Mounting: Bitumen, epoxy resin, Road construction glue, etc. Loading Ability: 30 tons