Ive had this item for about 15 years and never used it. It is in its slightly damaged original box. The accessries are still in the closed bag. Instuctions included. The protective foam is crumbly. I will replace the foam with a suitable replacement. From the manufacturers sales flyer: Disctracker is a precision damping device that improves the performance of tonearm/cartridge systems by adding a protective cushion between the record and the tracking stylus. -reduces low frequency resonance that colors the sound of even the best tonearm/cartridge systems on all records. -reduces record-warp resonance-as witnessed by a dramatic reduction of woofer flutter. - permits accurate tracking of even badly warped records. - reduces record wear and stylus damage from warps. - reduces distortion caused by high velocity groove overload, mistracking and intermodulation. - adaptable to most tonearms. I warrant this item to be as described when you receive it. There is no additional warranty. Check my feedback. I describe my items accurately, pack safely, and ship quickly. Check my listings for other vintage electronics.

Vintage DiscTraker by DiscWasher~Turntable Cartridge Tracking DeviceIt comes inside its Original Box and Original Instructions Sheet DiscTraker is a revolutionary pneumatic damping device that provides a critical protective cushion so badly needed with state-of-the-art tonearms and cartridges. DiscTraker must be set up correctly in order to work Used, in Very Good condition. The box is Good with light shelf wear. It will be shipped well protected inside a sturdy outer box. I have a 30-Day, Hassle-Free, 100% Full Refund Return Policy that includes the return shipping costs.Free shipping within the U.S.