Thank you for viewing! ♡ Please choose two covers from the eye kairo samples. Number 2 is made of flannel material. It has a soft, brushed-like feel. All covers are 100% cotton. Genmai Eye Kairo (Rice Husk Eye Warmer) - Pesticide-Free - 2 pieces Approximately 9.5 cm x approximately 20 cm Approximately 200g Ingredients: ◎ Genmai (Brown Rice) From the Kirishima Mountain Range in Miyazaki Prefecture Pesticide-free Herbicide-free Chemical fertilizer-free ◎ Pyrogen Coarse Salt Akatsuka's Pyrogen concentrated stick is added to coarse salt and roasted. 100% Cotton Heat in a 600W microwave for about 40 seconds to 1 minute. If you overheat it, it will burn, so please start with a lower setting. The automatic heating mode is not recommended. Overheating will damage the product. Thank you! (o^^o) Two-piece set: 2680 yen Material: Cotton