By putting ice in the indentation of the tokkuri (sake bottle), the cold sake won't become diluted even as the ice melts. - Set includes: Tokkuri and two glasses - Colors: Transparent and light blue - Material: Glass - Size: Tokkuri height approx. 14cm, glasses height approx. 5.5cm Used 2-3 times, but in beautiful condition. Stored at home. No original box included. Instant purchase OK