An ExerSaucer is technically a brand name for Evenflo activity centers. Other names for these are activity center, play center etc. These are circular stationary activity centers that have an elevated seat with toys all around so the baby can independently play but still be corralled in one place. The baby stands or sits upright with support so once the baby can sit up unassisted (about 4-6 months) they can start playing in this. The seat is a full swivel seat so the activity center has toys all the way around – it will keep your baby occupied for a while. The activity center is the modern version of a baby walker which are considered to be dangerous.
Here is a list of the top 6 activity centers.