Carnival Crinkles..safe?

[Blue]

Hi list,

I was wondering if "Carnival Crinkles" were safe?

http://www.petsmart.com/images/product/large/in501010.jpg

I read on another board recently that it can cause
impactions if they eat it..

I've been using ever since I got my gerbils and am
worried now. :\

Thanks,
Christina

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