Our Stainless steel Coaster: Can be print your logo and pattern, be used as promotional gifts. Stainless steel Coaster:1. Material:stainless steel2. Size:W98*H98*D21(mm) or W90*H90*D21(mm) Each coasters' stainless steel thickness is 0.5mm and EVA non-slip mat is 3mm thick.3. Various shapes,colors,logo and patterns,up to your request. Stainless steel coaster