The Gardner Bender exclusive cable ties are the best choice for bundling wire or cords. We use our patented DoubleLock™ design for these cable ties which provides superior tensile strength and reliability. This DoubleLock™ design is rated at 75 lbs of tensile strength and features a flared neck design which reduces fatigue on the head of the tie prolonging the life of the tie. These ties also have a ultra-violet light prohibitory which means the sun s harmful rays will not degrade the tie.