The Master Cam is the new single-stemmed camming device available from Metolius. Featuring optimized camming angles, machined cam-stops and the Metolius Range Finder system.
The Master Cam also offers an exceptionally narrow head design and ultra-flexible stem. Eight sizes are available, from 00 to 6 (8.5mm - 48mm full range). Hand-built in Bend, Oregon.
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http://www.ukclimbing.com/gear/news.php?id=1526