1pcs Double Concave Lens | 50mm Diameter and 150mm Focal Length Filters and Filter Paper Able to automatically identify Li-ion

Able to automatically identify Li-ion

For rods up to 16 mm

New 2019 Model

Skin of Human section

this ruler is the perfect tool for the job

1pcs Double Concave Lens | 50mm Diameter and 150mm Focal Length Filters and Filter Paper Able to automatically identify Li-ionHigh 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. 150mm Focal: Featuring a 150mm focal, this lens is an ideal tool for creating focused images and light beams.