The WR series isolators are made from helical wire rope which is held with rugged metal retaining bars. No other isolator in the market can match the versatility and performance characteristics of the Helical Cable Isolator. From its multi-axis isolation, to its ability to function in the most hostile of environments, the Helical Cable Isolator combines the best features of other isolation devices into one cost effective product. Originally designed for military applications, it has become increasingly popular in industrial and commercial markets as engineers and designers become more familiar with its capabilities. The WR Series can handle loads of less than one pound to over 5,000 pounds. And with over 100 standards sizes, RI has by far the most extensive line in the industry.