This tumblers is made of high quality 304 food grade stainless steel and the lid is made of ABS, which makes our stemless champagne tumbler unbreakable, durable and easy to clean. The champagne tumbler with lid is designed with double-wall vacuum insulation technology to keep hot drinks 3 hours and keep cold drinks 5 hours which can give you better taste experience. 5" H x 2" L x 2 1/2" L