Many users like children and smaller framed adults are forced to use chairs that are to deep or wide for them. The result is stress to the back of the legs from the seat cutting off circulation at the knees. A seat that is too deep also make it difficult to use the back rest, causing fatigue and poor posture. A seat that is too wide causes shoulder and arm discomfort from having to extend the arms out to reach the arm rest.The Solution!Kare Products decided to design the Small Ergo Chair to eliminates these hazards. Also see the Deluxe Task chair with Seat Depth Adjustments Model 812.