I bought the ultimate extreme diffraction glasses and they were awesome. They were so much fun, I was at a festival and putting them on other people just to see their face in awe at the transformation of the lights. However, after receiving and using once, one person missed my hand when giving them back and they dropped on the floor from about waist - chest height. One lens popped out with the 2 films and I couldn't get them back in, was hoping for them to be sturdier than that as that was the first time they were dropped and broke instantly. Unfortunately I've now lost the lens and so I have to rave one-eyed haha. Definitely worth the fun but bit sad about the lens.