Clamp on classic style straight arm peep mirror universal left and right hand head is made from polished stainless steel & nbsp; the stem and base are made from chrome fitted by two grub screws & nbsp; <span id=”sceditor-end-marker” class=”sceditor-selection sceditor-ignore” style=”line-height: 0; display: none;”> </span><span id=”sceditor-start-marker” class=”sceditor-selection sceditor-ignore” style=”line-height: 0; display: none;”> </span>it can be adapted for either clamp on or bolton applications FLAT lens 100mm diameter.<br>