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AC Power Cord & RCA plug
hygrometer
two connecting pipes
Brass Ball Diameter 2
arts and crafts
1pcs Double Concave Lens | 50mm Diameter and 200mm Focal Length Bosshead AC Power Cord & RCAHigh Quality Glass: Made from durable and high quality glass, this Double Concave Lens is designed to last and provide accurate and reliable results in a variety of scientific applications. 50mm Diameter: With a diameter of 50mm, this lens is perfect for use in a range of optical experiments, including refraction, reflection, and more. 200mm Focal: Featuring a 200mm focal, this lens is an ideal tool for creating focused images and light beams.
US$ 37.03
US$ 37.00
US$ 17.43
