The Home plus 24 in. L black cable tie are made from flexible and durable polyamide 6.6, these cable ties are easy to use with a self-locking design. They are 175 pound-heavy duty tensile strength, for indoor and outdoor applications and also for the HVAC industry with UL181 B listed. | Homeplus | | Home Plus 24 in. L Black Cable Tie 25 pk | Best Buy