Our blue plasters are in easy to open wrappers with a waterproof backing are latex free and have a low allergy adhesive to reduce the risk of an allergic reaction the plasters are visually and electromagnetically detectable to comply with uk food hygiene regulations 1995 si 1763 1990 si 1431pack of 40 plasterscontents19 x 38mm x 1019x72mm x 2238 x 76mm x 4 knuckle plasters60 x 45mm x 4 fingertip plasterscompliant with uk food hygiene regulations 1995 si17631990 si1431 l