Is the Razer Basilisk Ultimate really that small?

I was thinking about picking up a Razer Basilisk Ultimate but then I measured my hand and compared it to the Razer Basilisk Ultimate, it's tiny compared to my hand and it's so tiny that I assumed there had to be something I am not getting here. The length of my hand is roughly 17cm and the width of my hand is roughly 10.5cm. The Basilisk Ultimate is 130mm / 5.11 in in length, the grip width 60mm / 2.36 in and the height is 42mm / 1.65 in (Sizes from Razer's website, also I live in Australia so my measurements are in Centimeters so if you don't know Centimeters then I suggest searching "what is 5.11inch in cm", sorry for the trouble). Also I use a palm grip.