The 3M™ DBI-SALA® Rollgliss™ Low Speed Auto Retracting Vertical Descender is trusted by industrial workers everywhere for quick, safe rescue when things go south. An essential piece of safety gear for any crew's tool kit, this super-tough descender is built with corrosion-resistant materials and steel cable for reliable safety when lives are on the line. Powerful automatic retraction enables emergency evacuations for multiple workers, and the pre-rigged construction makes it easy to use.