Thank you for viewing! This is a handmade inner mask. Both sides are made with double gauze. Size: Approximately 8cm x 13cm (Please allow for some variation.) Perfect for disposable regular-type masks and adult 3D masks. For those who understand handmade items, thank you for your consideration. Double gauze Organic cotton Flat Inner sheet Inner pad Mask pad Mask stain prevention Pink Yellow Orange Blue Purple Handmade Handkerchief Half handkerchief Mini handkerchief Replacement Drool wipe Baby Handmade Present Gift Thank you Return gift