Product review (3 stars): Glad Amazon Had It, but...
Our Whrlpool washer is just a couple of years old.  This knob got loose in the first year of use and came completely off today.  I am glad that Amazon had it and I will be happy to have the broken one replaced soon but I have no confidence at all in the new one lasting.  What I'm pretty unhappy about is that for a big name washing machine, this is the cheapest made, crumbiest flimsiest knob whrlpool could have used.  It does have an attractive strip of gray rubber across the top and that's about it.  It's a cheap light-weight piece of plastic, about the weight of a sheet of paper and the only thing holding it on to the timer is 4 tiny tiny tiny, extremely small, hard to even see, almost microscopic I cynically add, very short brittle plastic nipples, about 1mm thick and 1mm long - ultra el-cheapo light-weight definitely not built to last any time at all, definitely not up to the task.  To add insult to injury, this tiny piece of flimbsy cheesy-made plastic that is worth less than $1,  sells for $26 +  $5 shipping most places, a little bit less here on Amazon.  You would think that for about $31 that it would be a sturdy, well-made metal handle with sturdy metal or heavy-duty plastic long lasting nipples to hold it in place, and maybe a little chrome plating on the grip part. I certainly don't think I am getting my moneys worth.  I would use a pair vice-grips and forget the handle but the plastic part of the timer that the knob connects to is likely to break or shatter then I'd have to replace the whole timer.