3M's Tegaderm high-performance foam adhesive dressing is suitable for use on wounds and ulcers, and with small medical devices. It's easy to apply, thanks to its spoke delivery system and square shape. The thin film backing blocks bacteria and viruses from entering. The Tegaderm dressing is made of soft, flexible foam to comfortably conform to your skin's contours. Its multiple-layer construction helps it absorb fluids and keep wound areas dry. This dressing will not stick to wounds or disrupt healing tissue. 14.3 x 14.3 centimeters.