This FreeMotion brand cable assembly is a durable and long-lasting cable assembly ready to install. OEM #281392 is 18'4" long and fits the F624 Dual Cable Cross strength machine, as well as most of the FreeMotion GZFW series units. Cable failure can cause accidents in the gym. Therefore, inspect both the length and the ends for damage when determining when to replace cables. FreeMotion along with most other strength machine manufacturers recommend all cables be replaced at least every two years.