They are thin, plastic bracelets, the kind of innocent-looking friendship bands that schoolgirls like to wear.
Available in a variety of colours and cheap enough to be bought with pocket money, they have become an overnight sensation in primary school playgrounds across the country.
But it is their name that causes alarm bells to ring: Shag-bands
. And they are worn by children far too young to truly understand what that crude term means.
If someone breaks the band off the wearer's wrist, the wearer supposedly has to offer the physical act that corresponds to the colour of the band.
WHAT THE BANDS REPRESENT
Blue: Oral sex
Pink: Flash body parts
Orange: Love bite
Gold: All of the above
(Meanings may differ around the country)
, who sells the bands in a shop in Croydon, Surrey, and on the internet, seems unconcerned about the growing outrage among parents.
He sells more than 1,600 bands a week. At 75p for a pack of six, they fall well within the pocket money price bracket.
He denies that selling them is immoral. 'I don't think the bands are sexualising children,' says the 38-year-old, who has no children himself.
'There are far worse things going on in playgrounds for parents to concern them-selves with.'
Hudson says black bands - which denote intercourse - are his bestsellers. 'I don't think children buy into the sexual side - it's just a fad,' he says.
But a Facebook site set up by Hudson to promote the bands tells a different story. The site has 9,845 'fans' and a brief glance through their photographs reveals that most appear to be children and young teenagers.
The latest provocative question posed by the site's administrator is: 'If you had to snap a band, which one would it be?'
While some websites suggest the bands are designed to be snapped, and the snapper given sexual favours by the wearer, others advise youngsters to wear colours that relate to their sexual experiences, like a badge of honour