The dynamic balance tonearm has been known as one that has an advantageous construction in providing high tracing ability, preventing skating, etc, tone arm designers have tended to underrate it because of problems such as the need for a spring, etc for application of stylus force and resultant increase in mechanical friction resistance.The GST-801 was the first dynamic balance tone arm that has successfully solved all of these problems by introducing a contactless stylus force application system. This Lustres unique variable magnetic flux type stylus force application system is a magnetic contactless system of compact and simple construction using a rare earth magnet.Features high Precision radial bearings.SpecificationsType: Magnetic drive dynamic balance typeBearing: High precision radial bearing x 4Arm pipe: Stainless steel pipeEffective length: 240mmOverall arm length: 337mmArm rear length: 80mmArm height adjustment range: 41 to 71mmOverhang: 15mmStylus force control range: 0 to 2.5gCartridge weight range: 13.5g to 28g (including headshell) On Jan-24-24 at 13:55:17 PST, seller added the following information: The video depicts the tonearm in use and is intended for that purpose only. The listing is for the tonearm and cable ONLY, as pictured; nothing else is included in the listing auction.