Laser Grating 250 LPI

Laser Grating 250 L P I is mounted in 60 MM x 45 MM glass frame with inner size window 10 MM x 10 MM. Sealed with Black Tape.
Apparatus required: Used with Laser Pointer only.

Package Contains:
1. Diffraction Grating - 1 No.
2. Box - PP/ABS - 1 No.