American Fishing Wire 49-Strand Cable Bare 7x7 Stainless Steel Leader Wire

Flexible, strong yes. But sharks still have the last word

AFW guaranteed quality

Nothing beats it for Mako wire leaders.

Thin and strong.

I bought this to replace a string on a cat toy(you know, the stick with a feather on the end of a string). I have a rowdy, voracious, 20lb cat who knows how to use his teeth like scissors. He will catch the toy with his paws and clamp down on the string. Three chews or less(mere seconds of work for him) and he is prancing off with the toy and I'm left with the empty and now useless stick. I have wasted at least 50$ on string toys. Finally I sprung for a toy with interchangeable toys, and decided to replace the string before even playing with him.This wire is awesome. He can't catch his claws in it and cheat, can't chew through it even if I let him hold it for several minutes, it isn't stuck in a coil(it doesn't curl after being wound), it was long enough for me to make several toys, and it has a nice flippy springy quality(not stretchy but it moves nicely).