The listing, Fishing Yo-Yo - Spring Loaded Automatic hook set device! Set it and forget it! has ended.
Let me start by saying I have many of these, have used them many times, and Ive caught plenty of fish with them. Not just Catfish, but Crappie, Gar, Bass, Bluegill, Sandies, Carp and Drum. And a few turtles!
It has been sitting in a tacklebox, so It doesnt look "new", even though it is. Does show some general wear and scuffs from the box, but nothing that impacts the performance at all. Its mostly the metal oxidizing, I believe.
This is a spring loaded length of string with a swivel on the end which you rig with a length of fishing line and whatever bait you choose. As you can see in the photo, you pull out the string and it locks the line in a groove on the yo-yo.You then attach the yo-yo to whatever you can secure it to. Make SURE you secure it good, cause Ive lost a couple of them to big fish =)
Once the fish bites the bait, the tug unlocks the latch, and the reel automatically winds the line back in, setting the hook on the fish in the process. It doesnt work EVERY time(what hook set does?), but it works enough to be fun!
It is VERY cool when you catch one..and just about every kid I've ever fished with has had a blast using them. Setting them is as easy as can be. Securing them is fairly easy too. I use a length of wire and twist it around something, personally. But you can just tie it to a branch that hangs over the water with some string, even.
Fishing season is right around the corner!
Good luck and feel free to ask any questions.
Shipping is free!