SUR-FIT AutoLock Stomahesive Flexible Skin Barrier with Flange SUR-FIT AutoLock Stomahesive Flexible Skin Barrier with Flange unique AutoLock flanging system closes and locks automatically with a single light touch; audible clicking confirms attachment. Pouch can be rotated or repositioned while locked in place). Ideal for users from post-op through independent self-care; easy application for all levels of dexterity. Note: AutoLock wafers must be used with AutoLock pouches. SUR-FIT AutoLock Stomahesive Flexible Skin Barrier Sizes and Options Flange Size: 1 3/8" - Barrier: 4 x 4" Flange Size: 1 3/4" - Barrier: 4 x 4" Flange Size: 2 1/4" - Barrier: 5 x 5" Flange Size: 2 3/4" - Barrier: 5 x 5"