Sure "it's safe for humans and pets", as long as they don't eat any! Oh they try to make it sound like a harmless mineral that somehow picks out molusks from all the other organisms. Read the small print! It's poison. Wild birds are the most likely to eat the bait, even if you follow the directions and sprinkle it under plants where it won't be noticed.
The only way to "only harm slugs and snails" is to fence off your garden completely, sprinkle after dark, and sweep it all back up before dawn. you could pick them off yourself in less time

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