RT-3 tubing is ideally suited for wire strain-relief applications. It provides excellent strain relief and insulation of "weak points", transferring flex stress away from solder and crimp joints and other typically sensitive wire splice and termination points. - RT-3 is especially well suited for semi-automated production equipment requiring tubing with a tightly controlled expanded diameter. Sizes and expansion ratios of RT-3 are available for specific spade/disconnect terminals.