Review on Ultra Durable 80040 Washer Agitator Dogs Replacement Kit - Easy to Install - Exact Fit for Whirlpool & Kenmore Washers - Replaces 285612 285770 3366877 387091 - PACK OF 4 by Blue Stars by Nick Garrett

So I just moved into my stepdad's house and have been doing laundry for a week. I'm always a curious person, especially about mechanical things, how they actually move or do their job. So I did to see how his washing machine works. After the water has been poured in, it MUST be shaken a little. but it just vibrates. So I was confused and thought maybe this is how it works. then i looked on youtube how hydromassage washing machines actually work and i found out that they have to rotate 360 degrees. After my discovery I told him and he tried to use the washing machine without a load to see if it worked. and he was shocked to learn it didn't work properly. and he wondered how long it had been like this because he never once looked back at his washing machine after he'd thrown his dirty laundry in it. In short, he unscrewed the middle spool and found that these "mixer dogs" were worn out and broken into small pieces. I ordered them and now our washing machine works as it should.