King Crimp Cap Gauge. Use to double check your capped homebrew for proper crimping.
Manufactured to exact specification suggested by bottle cap manufacturer. Precise holes (1.120 in, 1.125 in, 1.130 in, 1.135 in) needed for testing crimped 26mm caps.
Update: Since this post was published the price, availability or promotion has changed. Check the product page for current description, price and availability. Also: Today’s Deals on Amazon
More: Recent Amazon Finds