All-in-One Hydrocolloid Bandage Roll – 4″ x 3.3″. Ultra-Thin & Skin-Friendly: At just 0.3mm thin, our hydrocolloid bandages are hypoallergenic and latex-free, making them perfect for sensitive skin. Great Value & Versatility: The extra-large 4″x3.3′ size allows for multiple applications—equivalent to ~124 pieces of hydrocolloid bandages, cost-effective for family and daily care.