-5cm Focal Optics Concave Lens Optical Bench Optical

Description:

Optical glass lens, optical bench accessory
Science experiment - exploring optical property, Early physics science educational toy for kids children student
Student pupil teaching Aids，the fun of the lenses learning science knowledge
kid science development toys, a series of physical science boarden kids and children , stimulating their curiosity
Material: Optical Glass, Plastic Frame
Color： show

Size Chart:

Concave Lens Diameter: 30mm
Focal Length: -50mm
Handle length : 12.5cm/ 4.92 inch

Package Includes:

1 piece Optical Glasses Len Toy

Note:

Please allow 1-3mm error due to manual measurement, make sure that you do not mind before you bid.
Due to the different monitor and light effect, the actual color may be slightly different from the picture color.

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