My toy

Joana and Verunka have a close bond. They attend the same educational institution and on occasions engage in academic dishonesty together. However, they also have a mutual understanding of fairness and generosity when it comes to sharing their personal belongings. Consequently, they will divide this exclusive item evenly to ensure that neither of them feels envious of the other's enjoyment while using it... Perhaps you can discern the nature of this particular object that they are using?