Sur Fit Natura® Colostomy Barrier With 1 1¼ Inch Stoma Opening, 1 Each Eating Utensils 18 x 16 x 2 Style:1 Pair (Left & Right) 18 x 16 x 2 * Proven design for pressure relief and position equalization * Position equalization results from the variable action of individual air cells * Adjustable air pressure provides relief based on user s individual needs * Easy to use air pump is included * Low surface tension reduces friction and skin shear * Low shear fluid proof cloth cover (not shown) protects against incontinence and helps to reduce pressure on natural forests 1¾ Inch flange Barriers are designed for people whose stoma output is mostly liquid