Strong Bag Clip

Inspired by [ketem_studio clipper](http://www.thingiverse.com/thing:229824) - but drawn from the scratch with bigger teeth and thicker body. There is no way that this clip will release your bag :)
__UPDATE__:
I added two additional variants of the clip - if you have problems with opening clip after printing, try the weaker or weakest one (both have wider spacing between teeth)