No stock old, but new and fresh factory! Quality flat belt manufactured in Europe fresh factory for turntable: THORENS TD-166 MKII The advantage of a belt drive is to absorb chassis and engine vibrations that is possible only with the best belts with a high content of natural rubber and other matched materials that guarantee good wear resistance and proper traction but without deforming. After many experiments and trials, we reached this winning mix. The lengths of our straps are always exactly tailored to the model of turntables described, they are not adapted and stretched to let them enter for "strength" by damaging the mechanics over time and removing from the belt, both the durability and the ability to absorb vibrations well. In fact, unlike many, we own many measures, not a few "standards". You dont even have to worry about the mounting direction because they smooth on both sides. I am a true Vintage audio enthusiast, not just a: "I want to sell everything without understanding anything" and I always try to offer good quality with criterion. My feedback proves it. I wish you a lot of fun with our long lasting belts!