Dangerous 'bladed' fidget spinners which can puncture children's eyes and skin were found on eBay on sale for just 99p.
The popular gadget has become the latest craze to sweep the nation with school playgrounds full of children using the pocket-sized toy.
But an investigation discovered a number of the gadgets have been so poorly made that they failed basic toy standards tests.
Blades expert Professor Sarah Hainsworth told BBC's Watchdog, which aired last night, that she carried out tests on three spinners found on eBay.
The BBC show tested three fidget spinners (pictured) which were found on sale on eBay
She said she found the spinners were able to puncture a tomato - used as a substitute eye - and pork skin, used as human skin.
Professor Hainsworth judged all three of the gadgets - one as cheap as 99p - to be dangerous.
She told the show: 'We took these spinners and we looked at the sharpness of the points on them.
'We stabbed them into two different materials. We stabbed them into tomatoes which