This is a cute character-designed, soft fleece hot water bottle that can be easily warmed in the microwave. - Design: Hedgehog, dog, and cat characters - Size: 6-8cm - Warming time: Warms up in 15 minutes - How to use: Can be heated in the microwave - Material: Soft fleece - Product name: Koro Maru Hot Water Bottle Thank you for looking. This is a used item.