A really tiny little lemniscate for in the pocket. That is why it is also called a pocket marble track.
The four small metal beads hidden under the track are useful.
This game can be played with two hands or with one hand.
Just like with the large "endless eight" version, the track must be tilted each time so that the marble can continue to roll and not fall off.
Two-handed: The short sides of the marble track are held firmly, without the fingers blocking the track. By tilting the track from front to back, the marble can roll figure eights without falling.
One-handed: The marble track lies in the palm of the hand. This time with the long sides towards the fingers. The full-length thumb ensures the movement in one direction, the other four fingertips ensure the return movement.
Lemniscaat: The marble track can also be used as an endless eight including a center piece.
Finger dexterity, patience and insight are needed to keep the marble rolling endlessly.