Find Cadbury double decker 54 5g box, Sainsbury's Appliances Chocolate in Shopzilla's Gifts, Flowers & Food category: Compare prices of Cadbury double decker 54 5g box, Sainsbury's Appliances Chocolate and buy your new Cadbury double decker 54 5g box, Sainsbury's Appliances Chocolate at a good price. When buying Chocolate, check how shoppers rated the different online shops. Simply select the store that has the Chocolate you're looking for. If a Gifts, Flowers & Food store isn't rated yet it means that Shopzilla is still collecting shopper reviews.