EYEEZI EYEEZI Blue Light Blocking Glasses Test Kit UV Ray Laser Pen & Test Card NEW

New and sealed. Button still works and it ligt turns on. AI Says: Ensure your blue light blocking glasses are effective with this convenient EYEEZI test kit. This kit includes a portable blue light laser pen and a special test card designed to demonstrate the protective qualities of your eyewear. Simply irradiate the white square on the test card with the blue ray generator; the stronger the blue light blocked by your glasses, the darker the colour will appear on the card. Ideal for verifying the performance of blue light filtering lenses. Brand new and sealed, perfect for anyone concerned about digital eye strain.