Pros : Thought they were rather expensive at first, but they are really well made and super easy. Heat your glass, quench in cold water, smash a bit, and then stack your sifters - smallest on the bottom and graduate to the largest on top. Shake your frit down in size, and it's done!
Cons : The whole process is a bit time consuming, but it does save you money in the long run.
Other Thoughts : No waste of your glass. Only sifters I've seen that will give you real powder.
Pros : From the photo, I had no idea how large of a capacity these sifters really are. I was expecting them to be smaller and was pleasantly surprised. I like the solid quality, too.
Cons : None yet, but see "Other Thoughts".
Other Thoughts : A handle on each sifter cup would have been useful for those of us with reduced hand strength and flexibility. Handles would also allow the glass to sift from one cup to the one below, while shaken as a unit.
Pros : Graduated mesh sifters are a MUST HAVE if you make your own frit.
Cons : Besides not being a stacking set that can sort in one step, the biggest problem is no catch pan for the final powder. This means repouring each sort into the next container with more airborne glass dust each time. You definitely want to keep the dust mask you were wearing when pounding the frit on during the sifting. Still, it beats trying to poke assorted size holes in the bottom of cottage cheese containers.
Other Thoughts : The mesh sizes don't necessarily match up with commercial sizes. The smallest mesh is super fine, so you might want to sift the batch through whatever sifter you use when applying powders before using the final mesh size.
Pros : This is a super efficient set of filters and makes sifting frit sizes a breeze. I will never have to throw out scraps of glass rods again! Just collect bits of glass of the same or complementary colors (must be same COE though!) crush and sort for home made frits!
Cons : What's not to like?
Other Thoughts : You could make a set like this yourself with mesh and tubing but this is a neat compact set and in my opinion well worth the modest cost.