The rubber stopper is recessed inside the plastic shield

All four edges are sealed to prevent lint residue and leaking

Rubs in clear for easy monitoring

It comes with completely odor-proof material

KerraLite Cool Border Hydrogel Sheet Cover Dressing Combination, 6" x 6" Sold By:Box of 5 The rubber stopper is recessedKerraLite Cool is a soothing, debriding and moisturizing dressing that provides the ideal environment for managing dry to lightly exuding sloughed wounds. Its strong, transparent hydrogel is cool and soothing to the touch and will not dry out or stick to the underlying tissue on removal. This is a strong, transparent hydrogel that is impermeable to external contaminants such as bacteria, but permeable to moisture. Cool and soothing to the touch, it