Packed in handy 24 packs, these Pachmayer snap caps are precisely molded from a resilient polymer for many safe, damage-free hammer drops. After extensive experimentation and testing, these snap caps tough, polymer snap caps are proven to deliver long life and many hammer drops. In fact testing has shoen that these snap caps can withstand up to 5-times as many hammer drops as the other "disposable" rimfire snapcaps.