In China, only we can supply this thickness lens, other companies fireworks glasses lens are very thin, only 0.06mm, the glasses lens very easy come off from the lens.

All our diffraction glasses models are only one piece lens on left eye or right eye, our glasses is not 3 pieces lens put together.

If you find the diffraction glasses one eye with 3 pieces lens put together, that is not HONY diffraction glasses.

We advice you buy one piece fireworks glasses from our company, then you buy one fireworks glasses from other company, after compare them, you will find difference, you will find our fireworks glasses is much better quality and diffraction effect than others.