MATERIAL: Rubber TYPE: Independent modules that come with fixing bolts SIZE: 50x38x5cm COLORS: Black & Yellow FEATURES: All weather easy maintenance: will not warp,chip,crack,crumble or corrode. Extremely Durable: tough enough for heavy traffic resistant to extreme temperature variations, UV light, oils, moisture and damage. Flexible and conforms to road curves and any asphalt or concrete surface. Easy and low cost: One man installation with basic tools.