Specially selected a large size for a large palm. This one suited me. Took to work. I use only the main buttons and scroll, everything is fine with them. The top cover on magnets, for replacement of batteries is removed easily. Has pros: Large size, suitable for a large brush Pleasant to the touch plastic coating in the upper part. Due to the large size of the mouse itself, there are no accidental presses of the side buttons, they are at a sufficient distance from the thumb. Battery operated mouse. I consider this an advantage, because the batteries give a very long time before replacement, I use 5/7 mode for 4 months, the charge still holds. Cons: It's a bit heavy compared to other mice, but it's a matter of habit.