1pcs Convex Mirror Lens | 75mm Diameter and 150mm Focal Length Resistor Box this galvanometer is the ultimate

this galvanometer is the ultimate laboratory companion that you can count on to provide accurate measurements and reliable performance every time

Height: 120mm

(75 x White Connection Rod middle)

precise markings in both metric and imperial units

(15 x N Blue Ball 5 Holes)

1pcs Convex Mirror Lens | 75mm Diameter and 150mm Focal Length Resistor Box this galvanometer is the ultimateHigh Quality Glass: Made from durable and high quality glass, this Convex Mirror Lens is designed to last and provide accurate and reliable results in a variety of scientific applications. 75mm Diameter: With a diameter of 75mm, this lens is perfect for use in a range of optical experiments, including refraction, reflection, and more. 150mm Focal: Featuring a 150mm focal, this lens is an ideal tool for creating focused images and light beams.