mechanical coupling, for greater peace of mind.| Light convexity, for stomas that are difficult to care for.| SenSura skin protectors are offered with light convexity. The oval shape of the protector with slight convexity is designed to assist in the management of complex ostomies, such as a stoma at skin level, retracted or located in a skin fold. It exerts light direct pressure on the peristomal skin, thus reducing the risk of leakage by allowing the stoma to protrude. Consult your enterostomal therapist nurse for more information about the light convexity protector