The N-75B/II SD is a replacement needle (replacement needle) that performs identical to the original factory needles made by the manufacturer for YAMAHA record cartridges. This replacement needle is a "synthetic diamond needle" type. This is a generic model that plays a regular range of sound ranges, with a standard conical shape. General life is about 200 hours. The successor to the Y.60-75B/II N-75B/II BGE (4951586452003).