These flies are only available individually in size 12, 14, 16 and 18. Just click on "add to cart", you can then adjust the quantities in your cart.
This nymph in a size 12 weighs 0.30g
This nymph in a size 14 weighs 0.23g
This nymph in a size 16 weighs 0.2g
This nymph in a size 18 weighs 0.18g