There's nothing like Logitech, when it comes to computer mice. This is also true for the M525. The mouse, however, is more suitable for small hands or the way it should be used for the Lappy if you have fairly large hands. I had ordered the mouse to replace a Logitech MX mouse and found them ended up being too small for me. The purchase from Amazon Warehouse deal but was a flop. The mouse was used or before the customer. They came without packing in a small cardboard box with me on. Two AA batteries loose totaled. Unfortunately, however, lacked the USB transmitter stick, which should be located in the mouse. Too bad, so all return again.