Beak, just about the same. Your blisters are typically with a cardboard backing and the clams (clamshells) are with clear plastic front and back. If they are sealed around edges completely you' ll need your Spyderco to cut it open!
Joyce: I didn' t handle the ones I saw. Are those clams hinged at any point for accessability? Thanks.
L8r,
Nakano
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