Machined from aircraft grade aluminum for unmatched strength. On-the-fly star adjuster for easy adjustments. Forged lever has sealed ball bearings for ultra-smooth lever pull. Teflon sleeve allows perch to rotate (or spin on bar) in a crash or tip-over. Rubber boots keep out dirt and grime. You have seen the cheesy copies of our perch, don?t be fooled. If it doesn?t say ?Works Connection? you are not getting the original or the best. Made in USA.