■ This is a warmer featuring the Suica Penguin barista, commemorating graduation. ■ Used only once. ■ It's eco-friendly as you can reheat the silica gel bag inside in the microwave and reuse it. ■ A valuable item, limited to 500 pieces sold at all Pensta stores. ■ Instruction manual is not included. ■ Simply heat the silica gel bag inside in a 500-watt microwave for 20-60 seconds, checking frequently, and then place it inside the barista penguin cover to use. ■ The penguin cover can be hand-washed. Please note that the silica gel bag inside cannot be washed. ■ Please understand that this is a used item, stored at home, and inspected by an amateur. ■ It will be packaged in a recycled cardboard box with waterproof measures and shipped anonymously via Mercari delivery for safety and security. Please also note that it will be compactly packaged. ■ Please refrain from price negotiations.