Thank you for viewing! This is a set of two adzuki bean warmers. You can warm your shoulders, eyes and neck, or your abdomen and lower back simultaneously. Covers are not included. Please adjust the heat with a handkerchief or similar item you have. Heat in a 600W microwave for about 90 seconds. The warmth lasts for about 20 minutes. Allow at least 4 hours between uses. Can be used approximately 200 times. Size: Approximately 17cm x 8cm Uses approximately 120g of Hokkaido-grown adzuki beans. Fabric: 100% cotton Adzuki bean warmer, good sleep