Product review (4 stars): Much better than the Fox Run strainer, but with one flaw
I bought this to replace the Fox Run Garbage Disposer Screen (<a data-hook="product-link-linked" class="a-link-normal" href="/Fox-Run-Garbage-Disposer-Screen-Plastic/dp/B00022EWZA/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">Fox Run Garbage Disposer Screen, Plastic</a>) I'd bought four months earlier, which broke. This white strainer is 3 1/8 inches, best I can measure, which gives it the perfect amount of wiggle room in my Insinkerator garbage disposal.

Right from the start, I like this strainer much better. First off, the plastic is thick all the way around. I have no worries that it will break as the Fox Run one did. Secondly, the center grasping tab sticks out on both sides so that there is no right side up. The Fox Run screen had a holding knob on only one side. That was a problem because the strainer would easily get flipped upside down when a large amount of water was dumped down the drain, and then it was very hard to remove and flip over because there was nothing to grasp to pull the strainer out.

One disadvantage to this strainer is that the center grasping tab is not flared at all toward the top but is straight like a dowel. That makes it hard to pull out sometimes, especially if any slick substance is poured down the drain. Flaring the tab is the one main way to improve this product, so far as I can see.

The holes are smaller than the Fox Run strainer but still allow water to drain down well enough even when food particles are trapped above. The hole-size is another advantage over Fox Run. The Fox Run strainer allowed my kids toddler cup plastic straws to fall through the larger square holes in the strainer. Also, the thicker plastic and smaller holes do SOOOO much to block the sound of my garbage disposal -- it's amazing how quiet it sounds with this strainer in.

Overall, it is a much better product than Fox Run, and I'm pretty sure will do the job without breaking. If I were purchasing again, I'd now look for one that also has flared grasping knobs. However, I haven't found any reversible strainers like that on Amazon. There are a few buying options for this same strainer:

<a data-hook="product-link-linked" class="a-link-normal" href="/LASCO-02-4021-White-Plastic-Disposal-Sink-Strainer-Fits-Most/dp/B000FSTX8W/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">LASCO 02-4021 White Plastic Disposal Sink Strainer Fits Most</a>
<a data-hook="product-link-linked" class="a-link-normal" href="/LDR-501-5120-Garbage-Disposal-Plastic-Strainer-High-Impact-Fit-All-Design/dp/B000I1AQVY/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">LDR 501 5120 Garbage Disposal Plastic Strainer - High Impact, Fit All Design</a>
<a data-hook="product-link-linked" class="a-link-normal" href="/Plumb-Shop-Div-Brasscraft-322-115-Plastic-Garbage-Disposal-Strainer/dp/B003CELF46/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">Plumb Shop Div Brasscraft 322-115 Plastic Garbage Disposal Strainer</a>
<a data-hook="product-link-linked" class="a-link-normal" href="/Garbage-Disposal-and-Sink-Strainer-Guard-White-Plastic-Manufactured-in-USA/dp/B00L6IMLUC/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">Garbage Disposal and Sink Strainer Guard - White Plastic - Manufactured in USA</a>

Given my own concerns about which strainer to buy, and my initial bad choice, I thought I should try to help others do better. I even like the white color better than the black, and it hasn't gotten stained at all despite all the staining liquids that have gone through it. If you want a simple, reversible plastic strainer, I don't know that you can get better than this. Though if you find one with flared handles, comment to let me and others know.