Size 5A Shallow version of Size 5 174 x 115 x 41mm. Carton of 3.
This is the same dimensions as the popular Size 5 rearing container, but 41mm deep, instead of 60. This is advantageous for displaying mounted butterflies where the extra depth is a disadvantage. For storing pupae, particularly in the fridge, more boxes will fit a given vertical space, than the original Size 5 box.