Description:
- Please wear polarized sun to see the test card. You see hidden patterns
- This is the most convenient and quick way to determine whether the polarized sun is
- Distinguish from actual polarizer
- Material: Hard Paper Card
- External card size: about 6 * 3.8cm / 2.4 * 1.5in
- Internal test card size: about 2.5 * 4.5cm / 0.98 * 1.77in
Package Includes:
About 100 test cards