SE2408 Powder though expanding plug for these dies:
90510 - 3 DIE 38SPL/357M CARB
90581 - POWDER THRU DIE EXP 38 SPECIAL
90615 - 38/357 CARB PRO DIE SET
90964 - 4 DIE SET 38SPL CARB
91878 - 38/357 BL BSH CARBIDE 3 DIE SET
91936 - 38 SPECIAL/357 MAG BL BSH CARBIDE 4 DIE SET