Should I be worried?

[littlecoopnextdoor]

It looks exactly what I have purchased before it's Hagan oyster shells and it's called 'soluble grit' in a box from the pet store and says, digestible grit right on it. It's calcium for small birds and I use it for chickens if I'm in a pinch. It looks identical to the photo posted and I'd bet that's what it is. It's very small so definitely need bigger pieces for actual grit. My girls only usually take a little bit for calcium of this stuff.