Lucent Telephone Handset Cord Untangler / Detangler (3 Pack)

So far this product does what it claims. It will be interesting to see if it holds out of the long haul. So far so good.

They get the job done

did'nt fix in my office phone too short,would not lock in

I's not quite long enough t to into a Mitel phone. Just falls out. Would be fine on most systems.