These are simply really nice brake levers. They are very light, smooth, comfortable, well made, and just plain pretty. I don't know if anyone actually needs brake levers this nice. All I can say is that as soon as I saw them I wanted them on my bike.
They come in silver or in black. There are shims included so you can mount them on road or MTB/city-sized handlebars. An adjusting screw lets you adjust reach. Weight is about 76gm per pair; careful not to let them blow away.
This is the linear pull version for V-brakes and MTB disc brakes. Check with your brake manufacturer if you're not sure if you need regular or linear pull levers.
Price is per pair.