The mouse fits perfectly under the direct grip of the palm 18.5x11.5. Yes, it's pricey, but it's definitely worth it. I sat before on the Logitec G700s, but the buttons on it died. While I was looking for a new one, I was interrupted by a cheap ReDragon memeanlion and managed to forget what smoothness and accuracy are. Having bought myself a Razer Basilisk, I remembered what it is to enjoy using it!