The 207W656-100/184-0-CS5657 is a straight Thermofit molded boot designed to provide environmental sealing and strain relief for cable assemblies. It is manufactured from a semi-flexible, ZEROHAL polyolefin material (RT-1323) and comes pre-coated with an internal adhesive (type /184). Upon heating, the boot shrinks from as-supplied entry diameters of 2.10 inches down to recovered minimum diameters of 1.10 inches and 0.70 inches. The final recovered length after shrinking is 6.90 inches, providing substantial coverage. Its ZEROHAL properties make it suitable for use in enclosed environments where low smoke and fume emission are critical, such as in rail, marine, and aerospace applications.