CREATE TABLE table_28652521_1 (for_shank_type VARCHAR, storage_case VARCHAR)

What's the shank type of the buttonholer with red plastic box as storage case?
SELECT for_shank_type FROM table_28652521_1 WHERE storage_case = "red plastic box"
SELECT "for_shank_type" FROM "table_28652521_1" WHERE "red plastic box" = "storage_case"