NOT A LASER POINTER
I had an old laser pointer. It emits an intensely focused red beam of light that you can see as a single, tiny point on the floor at your feet or at the wall 10 metres way (regardless of whether it's light or dark in your room). The cat runs excitedly all over the house as you move it around. That's what laser pointers do.
This product does not do that.
Instead, it is like a mini-torch with a stencil over the bulb such that the image (of a fish in this case) is projected. If all the lights are off and you point straight at the floor or at a wall just the right distance away, the cat goes crazy. If the lights are on though, or you point it at a surface a bit further away, the light dissipates entirely. The cat then very quickly cannot see the image (just as you can't) and loses all interest.
For the discounted price of £1.89 I guess one cannot complain (hence 2 stars instead of 1). But be aware, this is NOT a laser pointer.