The Mount Cutter you choose will depend on the size of the mountboard you use, and what you wish to use it for.
For A2 size mount board - Midi Duo or Trio Mount Cutter
For A1 size mount board - Plus Duo or Trio Mount Cutter
For A0 size mount board - Maxi Duo or Trio Mount Cutter
If undecided between two sizes then it might be prudent to pick the larger if you have sufficient work space.
Duo or Trio Mount Cutter?
Use the Duo system . . . if your images are of various sizes and vary from mount to mount, then the Duo would be the correct choice.
Use the Trio system . . . if you are a photographer or if most of your work is the same size and typically mounted in windows of the same size then the Trio's parallelogram would be an advantage, both in marking out and cutting the windows.
Use the Trio Signature - for those who appreciate what Sir Terence Conrad calls intelligent design - products that not only work well but give you pleasure to use - then go for the Signature model - the system is just stunning to look at and to use.
If you are uncertain which to use call us on (+44) 07752 929363 and we will help you with your choice.