Extended keyboard and mouse pad arrived as described. The size is just perfect for me. The pad top surface is made of a waterproof and non-slip material which keeps the keyboard in place. The mouse operates smoothly and it works better than the typical mouse-pads I’ve used. The pad also provides a measure of contact comfort when using the keyboard. Spills and dust can be easily wiped off without any changes to the appearance of the top surface. The bottom surface is non-slip - holding the pad in place securely. This should also help retain the shape of the pad without the dreaded deformed edges of common mouse-pads made of foam. The seams are sewn with detail and the stitches look strong and durable - only time will tell.