One of our customers in Western Canada asked for a different design in a crimper. She described what she wanted and Rob designed this new one we call "Bumps". This crimper is unique in that it can be made as part of a die for forming single crust pie or tart crusts. If you make open pies like pumpkin or custard pies and wish to have a decorative edge this would be a nice one to use as it can form the crust and put the design into the dough in one step. It is also sold as a separate crimper on our web page.