Each plaster features an absorbent pad that cushions and protects the wound from water, dirt, and external contaminants. 100 Assorted Washproof Plasters – Includes: 72 x 50 mm (x4), 65 x 40 mm (x4), 76 x 25 mm (x20), 72 x 19 mm (x40), 38 x 38 mm (x8), 38 x 19 mm (x24).