The product is a set of (8) vintage Otari MX5050 BII2 reel-to-reel tape recorder VU meter knobs. These knobs are original Otari brand, made in Japan, and designed for use with the Otari MX5050BII-2 model tape recorder. The set includes screws and washers for easy installation and replacement of the VU meter knobs on the vintage audio equipment. This product is a valuable addition for collectors and enthusiasts of vintage audio and video equipment.