TIAKI Molino Slow Feeder Accessory

I bought the insert so that my Alaskan Malamute puppy would eat more slowly – he likes to wolf down his food in less than a minute. Unfortunately, this insert hardly made a difference; he maybe took a minute longer than usual. The insert slides around in the (ceramic) bowl and doesn’t spin, even when I try to turn it by hand it’s difficult. What a shame!