Modern, recent fidget spinners have proved to be potentially dangerous.
When inspections were carried out in many countries, 2/3 of all tested were dangerous concentrations of mercury and lead.
Excessive amounts of lead and mercury can lead to accumulation in the body and cause cancer.
Scientists consider 90 ppm of lead to be the safety threshold for children's toys.
Some of samples with painted metal base contained 334 ppm of lead and 155 ppm of mercury.
These with unpainted metal base test detected 1,562 ppm of mercury and 2,452 ppm of lead.
The most embarrassing thing is one of the most expensive models in the market fidget spinner contained an amazing value of 42,800 ppm of lead.
This post is not meant to frighten people, especially parents, who have already given this toy to their children, but pay attention
source: http://www.konbini.com/us/lifestyle/fidget-spinners-deadly-amounts-lead-new-research/