These are just really bad BBs. The ones I got (not here) smelled like old yogurt, and seemed to be already biodegrading. The outside of the BBs were sticky, and could be scratched easily just with my fingernail. Furthermore, as noted by the guy below me, they stuck together in my gun's hi-cap mag which caused all sort of misfeeds and dry-fires. Stay away.
-It comes in a 5000 count bag, instead of 4000. But of course...
-...that just means more crap.
- Easy to scratch.
Rating: [1 of 5 Stars!]