I'm not sure exactly how long they are but I'd guess about 8 inches maybe? I just did a review of them. These strings have a very Play Doh like texture- you know how it gets when you forget to put the lid back on? Kinda like that.. I guess they need to in order to make them pliable to be able to fit through the small holes in Wobbert's head. If you can find a coupon for these, give them a try. I wouldn't pay full price for them though. Coupons.com has them sometimes.
It's really no different than any other toy that dispenses treats. There are a million of them out there in some form. The strings are just a way to get the cat to pull on it to get it to wobble so the party mix comes out. Some cats like toys like that, others don't. Mine don't care for it. I bet the kittens at the shelter will get a kick out of it though.
I've never seen toys that dispense food, but I don't look specifically for them. The fact that there are "a million of them out there" like this one doesn't change my opinion, though. Our cats would start expecting treats along with the play if I introduced something like that.
Yeah. Just hit Amazon and put in treat dispensing toy. they make all different kinds. Some are like puzzles that they have to figure out before they get their treat. A lot of them are a lot cooler than "Wobbert". Others are just plastic balls that they swat around that randomly spit a treat out. I don't like this one either partly because it's bottom heavy and a lot of cats would get frustrated with it and give up on it. That's part of how mine ended up on the "island of misfit cat toys"
Its less of an "incentive" to me but more of a fun way to feel like they are actually catching something edible. Much like a mouse. I don't use the dispenser. I just use the strings. He bats it around for a long time and chews on it, like he would a mouse. Ghibli is into pretty much any kind of toy and he likes a variety, so these are a fun treat every once in a while.
