Not all of the beads are glass either, the green beads are clearly a plastic like material. I liked them so much I’ve bought the next size up for when he grows out of these. They are comfortable and did not hurt my feet. 50 on this estimate, by all means make the purchase. The installation of the hardware is not as simple as it is made to look in the video, but I got better by the time Id finished the 3rd helmet. Forgot to update I bought cheap opti barbell set from argos to use at home while gyms are shut. They are also very lightweight and comfortable with soft grey earpads. I was looking for some comfortable lounge pants to wear at home and was delighted to find such cute ones! You will sweat just trying to put this shirt on, lol.