This is a sample pack of one of each Blister that we have in our inventory. These Blisters have some marks, blemishes, and or air bubbles and did not pass the quality control check inspection. 
These Blisters are sold for size comparison to see if they would work for what you need.
Then an order of good quality Blisters can be made once you decide which Blisters will work for your project. 
Clamshell not included with the sample packs!