Align Pilates Frame Sitting BoxThe Align Pilates Frame Sitting Box is a little smaller than our Sitting Box making it the ideal length for smaller reformer carriages, for example, the earlier C Series, F Series, and H Series reformers. The Frame Sitting Box not only makes new exercises possible on your Pilates reformer, but it also makes seated and prone exercises more comfortable. Made with EVA foam padding with an abrasion resistant vinyl cover weighing approximately 7kg, it's