I have had many crystal growth sets and not all worked well. Here the growth works very nicely. The only thing I recommend is to use a smaller container in terms of the cylinder radius. This achieves larger crystals. Overall, I am satisfied with this set.
The scooter's lighting is short. Right after the first ride, the button for controlling the lighting (located on the bottom of the scooter) broke; it was claimed, but on another scooter the button also broke after one day of use. So the scooter has no light effects.
the scooter’s lighting range is shortafter the first ride, the button controlling the lighting (located on the underside) broke; it was claimed under warranty, but on the replacement scooter the button also broke after one day of use, so the scooter has no lighting effects