Head circumference is one of the most important anthropometric measurements used for early detection of abnormal brain or skull development in children and teens. Our experts continuously strive to simplify your routine work. That's why seca now offers seca 211, an environmentally-friendly, high-quality measuring tape with a practical wall dispenser for improved hygienic conditions. You'll always have the required measuring tape on hand when you need it. The space-saving wall dispenser is easy to install and refill.