If I recall, they are $25-26.
They are very, very good quality. It is basically an LED flashlight handle with decorative pieces screwed on the ends and a collapsing colored tube for the blade which lights up from the LEDs.
The handle also has sound chips in it so it makes cool lightsaber sounds when you swoosh it or hit it against another surface.
If a child owns more than one they could disassemble them and build new combinations at home.
We own a single bladed model and a double-bladed model. The double-bladed model is a bit more awkward to carry, transport, and use. The telescoping blade is basically kept collapsed by gravity, so with the double-bladed one, one end or another is constantly coming out and getting in the way