"Fits all Pro-Ject tonearms and allows qualified personnel to optimize bearing adjustment, when bearings are misadjusted, because of unassured transport of a turntable. CAUTION! Misuse of this adjustment tool may damage tonearm bearings! Getting this right is critical for the overall performance of the tonearm, as well as for the preservation of record grooves." - Pro-Ject

• official Pro-Ject tool for finely adjusting your tonearm bearings
• suitable for all Pro-Ject turntable tonearms
• includes (2) inserts for different bearings
• aluminum brass construction
• for use by qualified personnel only (note:misuse of this adjustment tool may damage tonearm bearings)