I recently purchased your product the sash mate, After some scepticism about how practical it would be and how quick it would take to get familiar with how it works. However I now feel obliged to inform you of just how pleasantly surprised I am and how much of a useful tool this is to have on board. It’s easy to store on a small van and saves time on what sometimes could turn out be a two man job, Its a great product and would definitely recommend any glazing or Upcv repair company having one handy at all times.