These 12g "Safety Training Ammo" are VERY orange so can not be mistaken for live rounds, which is exactly what we wanted for use at my small sporting goods shop when providing training or checking the functionality firearms we buy.
These do allow for "dry firing" and hold up well, but since they are plastic they do wear out at the rims with a lot of use. We consider these to be "consumable" and replace them as needed.
May not be the absolute worst purchase I've ever made, but certainly ranks in the top three..... Try using these in your pump action shotgun and it will jam, time and time again.... Perfect for single shot, or even double barrel, but who needs to practice loading those? Manufacturer should be embarrassed to offer these pieces of junk.