The Light Blue Jaws are curvy with a rounded bottom.  These could work well in mugs that are bellied out with a narrower rim then belly 
The diameter at the top of your mug can be no smaller than 66mm (2  5/8 in) or the widest section of these jaws will be too big. 
Smallest the narrowest part of jaws can go is 48 mm (1  7/8 in)
Jaws are covered in 1/8 foam
Redesigned jaws to improve stability and it no longer matters which order jaws are inserted. Previously jaw pieces were labeled M, U, and G and they were inserted in that order.
The new jaw sets range in price depending on how long they take to print, how much material they use, how much work it takes to apply foam etc.  
The light blue 002 set is 45 Canadian, which is around 34 USD depending on the exchange rate.