Plastic is very light and breaks easily. Be very very careful.

Its just plastic.

With the aid of a Dremel tool to remove markings and decal paper to create my own customized labels, this represents a cost-effective alternative to the pricey laser-etched buttons.

Works well. Used this with the ISY-99 and it easily detected each button properly. I didn't like the way the separately ordered clear buttons looked, so I have ordered custom etched buttons for this keypad. About the only negative for me is the tactile feel of the buttons. They require more pressure to click them than other standard Insteon switches such as SwitchLincs or Icon relays, which require only a soft touch to activate. The KPL seems to need a fair amount of pressure to activate a button and it gives it a bit more of a cheap feel. But I would still probably order more of these as my Insteon configuration grows and I want to control more devices/scenes from various locations.