Cosmetic powder case

A cosmetic powder case, comprising:

• a case body having a chamber and a lip wall at the opening end of said chamber;
• said lip wall having a position slot at interior side thereof and an order slot at exterior side thereof;
• said order slot having a lock ring slot thereon;
• a main cover having cover slot at bottom side thereof;
• an interior cover having a piece body and a round cover body, which are formed as an unity;
• said interior cover securing to said main body by said cover body engaging to said cover slot;
• a separate disk having an axial hole at central, channel potions around said axial hole and a lock sidewall at the edge thereof;
• each of said channel potions has openings thereon;
• said lock sidewall has position flange at exterior side thereof and a ring slot at interior side thereof;
• said ring slot having position blocks therein;
• a rotatable disk having an axial rod at bottom side thereof, channels around said axial hole, lock device, which are two parallel ribs, at exterior side thereof and a L-shaped lock flange extended from the edge thereof;
• said lock flange having a ring rib at distal end of interior side thereof, and
• a puff having a band thereon for facilitating user to grip;
• thereof, first we put cosmetic powder into the case body, put the separate disk into the chamber of the case body with the position flange of the separate disk engaging to the position slot of the case body and the lock sidewall of the separate disk engaging to the lip wall of the case body to secure the separate disk on the case body , cover the rotatable disk on the separate disk with the axial rod of the rotatable disk receiving in the axial hole and the lock rib of the lock flange of the rotatable disk engaging to the lock ring slot of the order slot of the case body, such that the rotatable disk can rotates relative to the case body but cannot depart from the case body.