I've got two portable keys, an American Morse Porta-paddle, and a Begali Expedition. The Begali is heavy and sturdy, a fine precision machine. Its flat charcoal colored finish makes it a little less flashy than some of the other models made by Begali. Its basic design is somewhat similar to the N3ZN ZN-QRP key shown earlier in this thread. When you adjust the Begali for close contact spacing, it stays exactly the way you adjusted it. It is too big and heavy for ultra-portable operations like long backpacking trips, but very well suited for tabletop operating, and a great key for the shack, as well. My American Morse Porta-paddle is much lighter. The paddles themselves are very lightweight aluminum, so lightweight that I wouldn't consider them usable without some form of sturdy base to mount them to. I bought mine with the cast iron base that's sold by American Morse, but there are other options. With that base, the set weighs something like half of what the Begali weighs, but it still stays put on a table. It is very sturdy and rugged. It is not as precise as the Begali, but has a nice feel, nonetheless. I like my contacts closely spaced, and the Porta-paddle can do this, but it needs occasional re-adjustment. I'd recommend either model. Either should last a very long time, even when jostled around in a backpack. The Porta-paddle is much cheaper than the Begali, while the Begali has a much nicer feel.