A. Yes. We design the brushes according to our stringent requirements and each brush is the culmination of months of trials and testing, and conducting experiments with samples (will it hold enough paint? will it draw long lines? will it draw a successful spiral? will it be light to hold? will it be comfortable in the hand? is it aesthetically pleasing while at the same time functionally efficient? etc). They are then handmade in the UK in collaboration with our brushmaker - who incidentally also makes forensic brushes - to our rigorous and exacting standards. We then spend further time manipulating the final tweaks, rehashing or in some cases going right back to the drawing board and starting again from square one. Since these brushes are unique, they do not subscribe to standard brush sizes and cannot be bought anywhere else. For more information, please visit our Shop.