Band-Aid Brand Hydro Seal Bandages Blister Cushions Extreme protects from rubbing and pressure to help prevent blisters.The blister pads stay in place for multiple days, even through showers for long-lasting protection. Band-Aid Brand Hydro Seal Bandages Blister Cushions Extreme are not made with natural rubber latex. This package contains five medium blister cushions, each measuring 1.6 by 2.6 inches.