Fidget Cubes
Fidget Cube can fit in your hand, about the size 3cm on each side. Fidget Cubes has 6 different sizes with one side has Buttons, one side has Gears, one side has a switch, one side has a Joystick, one side has a circle that moves, and the last side has a smooth spot.
Fidget Cubes help manage Anxiety and may increase focus by having something in your hand to fidget with.