In classic bolster style, this swing challenges flexion patterns, posture and core muscles, while utilizing gross motor skills. However, this Bolster Swing has squared edges for a stable and balanced sit. Our bolster swing was designed to be extremely lightweight for easy moving, adjusting and maneuvering. The included frame has lots of hook-up options to adapt the swinging and stability according to the comfort level of each child. This Bolster Swing is practical and useful. If you are looking to add a versatile basic to your sensory room, here it is!