My cat was given some of these for Christmas by a friend. He likes them, but doesn't go wild for them like he does with the meaty cat treats. If he sees the packets of meaty treats, then he goes crazy and has got into the cupboard to get them and rip the packaging open. Despite these being left out in the open, he has not tried to open them. He goes crazy when he smells most catnip things but doesnt seem affected by the smell of these.
They look like small, pale green chocolate buttons. They are also the consistency of chocolate buttons so can melt into your carpet if your cat chooses to sit on them rather than eat them!
The ingredients listed are milk and milk derivatives, oils and fats, various sugars, minerals, cereals, derivatives of a vegetable origin. It doesnt sound too healthy for a cat, especially the sugars but I'm sure that occassionally they won't do any harm.