Surface and Materials

Let's cover some surface elements: the entire top body has a matte black, rather grippy, and slightly PBT-like coating. It feels good to the touch, but loves collecting fingerprints, so the surface will probably need more cleaning than on most mice. There's a glossy inlay in the middle that contains the textured rubber scroll wheel and plain ABS plastic CPI button.


The sides are where the magic happens. Alright, it's not magic, but there are some really nicely textured panels, which I think are covered with a hard rubber material. They provide a stable grip even after hours of using the mouse, and I have some sweaty hands. The texturing is dense in the middle and opens up towards the sides. As for the side buttons, they are plain matte plastic, just like the CPI-changer.

Build Quality

Build quality is nearly perfect, but there's one rather annoying issue. The scroll wheel is pretty loose and can rattle around, and has some play inside a single notch, too. Apart from this, the whole mouse is solid as a rock; it doesn't emit any creaking or squeaking anywhere. It's a pity about the scroll wheel, but perhaps only a small percentage of M55 models are affected.

Weight

The Corsair M55 RGB Pro weighs approximately 89 grams with a few centimeters of cable, so the 86 g nominal weight is pretty much accurate. It is a decent weight for a mouse this size and feels balanced, too. I might get boring because of the repetition, but again: a light mouse is generally better for your wrists in the long run. This one is already pretty good as it is, but if we take a look at the competition, calling it light and agile doesn't stand in 2019.