9654: Easy Slot trout foam in lid & base with swing leaf. 6 rows of 4mm foam. Detachable swing leaf with 6 rows of 3mm foam. For flies sizes 10 to 20. Entirely water-proof with a unique & secure closure system. 9751: Easy Slot streamer/salmon foam in lid & base. 5 rows of 4mm foam. For flies sizes 1 to 12. 9754: Easy Slot trout foam in lid & base with swing leaf. 6 rows of 4mm foam. Detachable swing leaf with 6 rows of 3mm foam. For flies sizes 10 to 20. Entirely water-proof with a unique & secure closure system.