The bbl sofa is a staple post-op surgery item you will grow tired of being on your elbows and knees, therefore the inflatable bbl sofa is a great solution for relaxation during recovery. This comes with an inflatable foot rest which can be deflated a little and stuffed into the hole and used as a regular inflatable chair once you're done recovering. Material: environment friendly pvc and flocking. 125x100x96cm for sofa, 55x55x41cm for stool; packing size: 252410.5cm/9.849.454.13in. Sizing: this item is recommended for post op patients who measure straight across, at the widest point of their hips, under 23 inches.This items hole size is 22.4 inches, therefore if the hole feels too large it will be necessary to add pillows as a cushion. If the hole feels too small, some air will need to be let out to adjust the hole size. Usage: there is a possibility that you will be weak and in pain, therefore assistance is highly recommended while using this product. This item is made of pvc.