The expandable basic model seca b41 offers excellent readability with its large measuring scale. The 140 mm scale with anti-reflective glass always offers you the perfect view of all measurements from any perspective. The three-meter-long cuff tube also offers the greatest freedom of use. The device is especially impact-resistant because it is manufactured completely out of shatterproof polycarbonate. It offers three different usage options: stationary with a wall or rail mounting or mobile with a rolling pedestal.