Safety Blue's Hi-Vee ropes are tightly plied, polyester 16-strand lines that offer a smooth, snag-resistant surface. Polyolefin yarns in the core of each Hi-Vee's cover strand reduce weight and improve handling. Twisted parallel blue yarns, in a trademark blue core, allow the rope to stay firm and round while in use. The core of the Hi-Vee also acts as a warning flag, if the cover is ever cut. The tough, durable cover is treated with a protective finish that minimizes abrasion and maximizes rope life. The lower tensile strength difference of Safety Blue Hi-Vee is due to the color-dyed cover yarns. 7,000 tensile.