Eliztin Silk Mask, 5 masks per box Korean name: "Regenerative Schild Mask" Sold in Japan as "Silk Mask," but both are the same product! The unopened box will be sent in an envelope. The thickness is about 3cm, so the box may be crushed. Please understand that this item is stored at home. This cream-wrapping mask regenerates the skin and is effective after 30 minutes of use. - Product Name: Regenerative Schild Mask - Type: Cream-wrapping mask - Country of Manufacture: Korea - How to Use: Use for 30 minutes - Expiration Date: April 24, 2027