Fulfillment by Amazon (FBA) is a service we offer sellers that lets them store their products in Amazon's fulfillment centers, and we directly pack, ship, and provide customer service for these products. Something we hope you'll especially enjoy: FBA items qualify for FREE Shipping and Amazon Prime.If you're a seller, Fulfillment by Amazon can help you grow your business. Learn more about the program. The Master Lock no. 8370d set your own combination cable lock is 5 feet (1.5M) long and features 1/2 inch (12Mm) diameter braided steel cable for maximum strength and flexibility. The protective vinyl coating protects against scratches. The 4 dial combination security offers keyless convenience. The limited lifetime warranty provides peace of mind from a brand you can trust.