Manufacturers lose in the end

It has been a long time since Henri Obsfeld (optician, Letters, June 19) taught me. The industry has moved on and one size of frame does not fit all. My approach has always been, that if a frame does not fit the face, tell the patient, advise him or her that it only comes in one size and suggest they choose another that does fit. That way customers have frames that fit and the manufacturer loses the sale. I have always thought that one style in multiple sizes contributed to the shrinking of the British frame industry. There is a re-tooling cost, but there is also a massive stock holding cost that goes with multi-sizing. One thousand frames in four colours equals 4,000, whereas 1,000 frames in four colours, two bridges and two eye sizes equals a stock of 16,000. With 10 frames in a range and say &\#163;10 per frame, the cost of the extra stock would be &\#163;1,200,000. Ian Billson Haverhill Suffolk