Flip Flop Fasteners by Hot Off The Press
 

Has anyone used this product before? It looks like a great way to hinge cards and/or projects. I have found this brand to always be good quality and the company service is good, but I don't know anyone who has tried these fasteners.

Here's the link and there is a short product demo video:

Flip Flop Fasteners� by Hot Off The Press Inc (4104188)

Thanks for any tips or info.

JD