Wm. M. Nye model SSK-001 current price $89.95
The Nye Viking website describes this key as follows...
"Discover the pro's choice in keys for electronic keying. Long, finger-fitted molded paddles for fast, comfortable easy action! Uses gold-plated copper contacts, nickel-plated brass hardware and heavy die-cast base with non-skid feet."
The description does not give these paddles justice. They are simply a joy to operate and rock solid to boot. The SSK-001 has been in production for decades and hardly ever needs any adjustments at all. While I have never tried this, I have been told that these paddles are perfect for mobile operation. The case is rugged and will not warp when securely strapped down while in use in a mobile station.
The base dimensions are 4" long by 3" wide by 1 3/4" high. The paddles extend 2 1/2 inches beyond the base. The item weighs in at a whopping 1 pound and 14 Ounces.