Warmer plate is Made of high quality metal materials, heating evenly, safe and durable to use.Light weight and compact size, easy to carry and satisfy the needs of the user and keep warm.Suits for most of cups; such as metal, ceramic,enamel,tile,high temperature plastic,glassware. Advice to use Flat Bottom Cups for better use.high-temp resitant materials made supports long time using.Suitable for ceramic,glass, stainless steel cups. Coaster Warmer will be your fine gift choice to your lover friends on Thanks giving, Valentine’s day.