To separate, gently release each case starting from the outer edge of the nest 45 piece, 50mm, (Boxed 1). To add a touch of shimmer to your birthday party proceedings decorate your cupcakes or muffins with these shiny pink cases. Each case's base is 50mm wide which makes them perfect for both muffins and cupcakes. These cases are retailed pack with 45 cases, the perfect amount for a birthday party.