STK shop (7-14 days to arrive) will work hard every day to ensure you receive the best quality products and services. We will do our best to respond to Amazons policy.
Description:
- Optical glass lens, lab optical bench accessory
- Science Experiments - Early Physical Science Educational Toy for Children to Explore Optical Properties
- Teaching Aids Students, Learning Science Knowledge of Lens Fun
- Kids science and development toys that stimulate their curiosity, a series of physics strengthens the horizon of children and children
- Material: optical glass, plastic frame
Size Chart:
Convex Lens Diameter: 1.6 inches (40
Focal Length: 3.9 inches (100 mm)
Dollar Length:13.5cm
Recessed lens diameter: 1.2 inches (30 mm)
Focal Length: -50mm
Dollar Length:12.5cm
Package Includes:
1 x Optical Glasses Lens Toy 40mm
1 x Optical Glasses Lens Toy 30mm
Note:
Please make sure you do not mind before you put the value, please allow 1-3mm error due to manual measurement.
Due to the different monitor and light effect, the actual color may be slightly different from the pictures.