sticky, a lot of these toys are made in China and may not be safe.  If you can't confirm with the online store where they are manufactured I wouldn't suggest buying then.  I only purchase toys made in the US so most of the time that means purchasing from stores in person where you can see the manufacturer on the packaging.  The feathers on these toys may be dyed with unknown chemicals or lead based dyes.  I personally don't buy toys made in China for that reason.  IMO cat toys are as important as cat food in making our choices because the toys end up in their mouths or even digested.

My cats also love Da Bird.  I bought it long ago, before I was even concerned about MIC products so I am glad to see it's made in the US.  I also like the fact that a replacement "bird" can be purchased!