RPs
These small micro-nuts (very tiny thin nuts made of brass) allow for protection in thin cracks that would otherwise be unprotectable. RPs are made in Australia, although other small brass and metal nuts are made by other manufacturers.
Suggested Reading
Explore Climbing
Must Reads
About.com Special Features
Learn to Pitch
Strike out the competition with these step-by-step pictorials. More >
Introduction to Pilates
Learning Pilates fundamentals can help you get the most out of your exercise regime. More >
©2009 About.com, a part of The New York Times Company.
All rights reserved.