I am totally against the Martelli cutters. I bought the large and small ones at a show as did two other friends I was with. All - and I do mean all - of our cutters broke within a month of purchase. Mine was the auto closing mechanism and I believe the spring came out of one friend's cutter. Anyway, after attempting contact with the company several times, none of us ever received any response! Naturally they will never receive any business from us for any product they sell in the future. We also will be vigilant in warning anyone who asks about their lack of quality and poor customer satisfaction.