A system for reducing a volume of a stomach cavity is provided. The systemcomprises a band having a plurality of segments with a radially inwardlyfacing surface, aradially outwardly facing surface, and top and bottom edges. A plurality ofradiallyoutwardly projecting flexible belts connect the segments where the belts formtissue foldsattachment positions on the band. The band creates a stricture to reduce thevolume withinthe stomach cavity when attached to a wall of the stomach cavity andcontracted to areduced diameter.