Sit ‘n Spin

I loved the toy, Sit ‘n Spin. I remember sitting there on the floor and spinning and spinning.  It came in a multitude of visual designs however all were multicolored (using some or all of the primary colors red, green, yellow, blue). It features a large circular two-part plastic base. One part is in contact with the ground, and is connected to a smaller plastic disk above it. The other part of the base, another circle, is free to spin about the axis.  You would sit on this part of the base, cross-legged and straddling the pole, and turns the disk, spinning the child in the other direction.