We have all four versions of these lightsabers and this one seems to be a favorite. It glows (red), hums (one sound in idle and another for contact), and is a spring blade that completely disappears into the hilt.

It's a good weight and seems durable enough plus the batteries last quite a bit of time. The cons of this saber is that the light doesn't glow very brightly and the spring could be dangerous for those who are standing in the way.

Otherwise, this toy is recommended by all three of my sons and their daddy.