Nothing against this light product, but just making everyone aware that since these obviously comes direct from China where a lot of regulations are being violated at the consumer's expense, it would be good if an official test result of its XRF spectrum analysis is given out so everyone would be informed how much these products contain lead and other harmful substances. The US Feds are cracking down on products made for kids that contain high amounts of lead, but it doesn't necessarily mean that adults are immune to exposure from this.
Remember that there's always a catch especially if a product is priced much lower than other competing products in the market.