PLAY WITH BOTTLE TOPS

My father played with bottle tops. They designed a circuit on the floor, in the street. The bottle tops you can get them from bottles. The game consists of finishing the circuit first. You have to push the tops with your fingers. It's a very old game!
Source: Rubén González Ruiz, Víctor de la Cruz Garrido, Ismael Diez Martínez, Alejandro Diez Amor