These Vacuum Tumblers are made of durable stainless steel for long-lasting use. Available in Blue (WL952X), Red (WL953X) and Silver (WL954X). Double wall with vacuum insulation and copper lining to keep drinks hot or cold up to 6 hours. Push-on lid with a thumb-slide opening and rubber hasket helps prevent leaks and spills. Cup holds 20 oz. Meets FDA Requirements. Handwash recommneded.