Hard Case Replacement for Logitech Ergo M575S / M575 / M570 Wireless Trackball Mouse

Really nice hard shell. I feel like my mouse is very protected.

Bought this to use when transporting my Nulea M501 trackball mouse. The fit is perfect. Nice buy.

first couple of times you put the Logitech M575 in the case and zip it shut it will be a little tight but the fabric stretches a little and the Ergo mouse will fit just fine. Zipper seems to be well made - has no frays and has no broken seams. I am glad I purchased this because it will protect the mouse from a hard environment.

This case is better than I had expected. It looks like soft nylon in some of the photos although it is listed as a "hard travel case", however I believe that is somewhat of an exaggeration. I believe calling this a firm case would be more accurate as the case will depress under a modest amount of pressure. However, I believe that it should provide adequate protection for the mouse under most conditions. Keep in mind that this is NOT a Generic Case; it is made for a specific mouse, and the MOUSE is NOT INCLUDED. I am pleased with the quality of this case and I believe it is a good value at $8.00. Despite what I feel is an error in the description, I am giving this case five stars.

Let's be clear, despite the product description, this case was not made for the Logitech M575S, and it does not fit. You can force it to fit, and it's close enough to get it closed, but the case wasn't designed for it. The depression in the lid for the trackball isn't even in the right spot. It was clearly made for an earlier model, and still close enough that they can market it for the M575S. It will do the job of protecting the trackball during transit. But it doesn't fit like a fine glove, it fits like a boot you found while walking barefoot, better than nothing.

I've tried transporting M570s without this case and ended up damaging the ball. Fortunately this case is now in my life. The case is sturdy, it isn't entirely hard but it doesn't have much give. The zipper is smooth and it fits the M570 well. I can now throw my case and mouse in my bag and go without concern for the ball being damaged...or anything from being damaged. My mouse is safe. Good value for money here.

This mouse is great once you get used to not moving the mouse when you want to move it on the screen. That took a couple days to get used to. My wrist feels better and allows for the keyboard to be centered better with not needed the space to move the mouse about. Bought the case separately for this and glad I did. It’s a bit bigger than the typical mouse. Taking it back and forth to the office is a little move effort since I do use the case to not damage this mouse. Works great and is accurate when moving it on the screen. Have not experienced any lags or non-response.

I have been using a trackball of one design or another (after ditching my mouse decades ago) ever since the mid-1980's when I first tried one at an ISE convention in Albq., NM. Unfortunately, I wear them out and have to replace them every few years. When I bought my newest laptop last week, I figured it was time to also buy a new trackball. So many choices these days, but I chose one of favorites, again, the Logitech M570 wireless trackball with the blue ball in it. I didn't know there were protective zippered cases for it until I saw them here on Amazon whilst searching for the best price for the M570. I thought, " How cool. Looks like excellent protection for my trackball." -- and, it is. This zippered case is perfectly formed around the M570 and secures it very well, snug but not too snug, trackball is immovable inside when zipped closed. Hopefully, this hard case will prolong the life of my M570. Love it!!