Abstract: The present invention relates a rotatable play body suitable for a children's game consisting of a freely rotatable swing body (S) arranged between two mutually opposite disc-shaped side caps (K1) and (K2), wherein the swing body (S) exhibits an outer shell (M) and a centred ball bearing (L), the first disc-shaped side cap (K1) exhibits an outer edge (R1), an outer face (F1) and, on the inner face (I1), a first centred extension (P1), the opposite second disc-shaped side cap (K2) exhibits an outer edge (R2), an outer face (F2) and, on the inner face (I2), a second centred extension (P2), and the extensions (P1) and (P2) are suitable for engaging in the swing body (S), wherein the disc-shaped side caps (K1) and (K2) are movable at the outer edge (R1) and (R2) towards the freely rotatable swing body (S) in order to fix the freely rotatable swing body (S) in its position.