Pro-Ject's Align-It Tool allows you to get the perfect alignment on your cartridge, thus getting the best sound from your turntable setup. The tool is made for Pro-Ject turntables, but can work with any turntable with tonearms measuring between 8 - 12" in effective length. Comes complete with alignment tool and alignment mirror to ensure accuracy. works for all Pro-Ject turntables, plus other manufacturer's tonearms (see compatible tonearm length below*) overhang, azimuth and tangentiality adjustments alignment for 8.6", 9", 10" and 12" tonearms* super fast workflow detailed instructions and tonearm geometry explanation included made in Europe *suitable for tonearms with the following pivot to spindle distances:200 mm (used on Pro-Ject 8.6” tonearms)212 mm (used on Pro-Ject 9” tonearms)238 mm (used on Pro-Ject 10” tonearms)291.6 mm (used on Pro-Ject 12” tonearms) .