DANGER BURIED CABLE - Warn of buried cables to prevent electrical shock when digging. Available in two languages: English and Spanish to accomodate all your employees. Available in three sizes and eight materials, including Accu-Shield™ which is guaranteed for 15 years in extreme conditions. Traditional OSHA-style signs, tags and labels are the most widely recognized design format in the industry. Danger header indicates a hazardous situation that, if not avoided, will result in death or serious injury.