They appear like roller skates in numerous ways. They can be moved apart to zoom in on a few sizes, which is good for development, or they can have fixed size.
If it is your first time picking up the hockey skates, you may feel some brand-new experiences. For those who enjoy roller-skating, it resembles the sensation if the front and rear rollers are replaced with the smaller diameter ones, and there is no usual support under the toe and the heel. Hockey skate is tighter however more maneuverable.