See also:

Wear indicators
1) New tread 2) Worn tread 3) Tread wear indicator Each tire incorporates a tread wear indicator, which becomes visible when the depth of the tread grooves decreases to 0.063 in (1.6 mm). A tire ...

Precautions to observe when handling a compact disc
Use only compact discs (CDs, CD-Rs and CD-RWs) that have the mark shown in the following illustration. Also, some compact discs cannot be played. ● You cannot use a DualDisc in the CD pla ...

Outside mirrors
Outside mirrors ...