Stainless Steel Double-Walled Vacuum Drinking Mug Funny Coffee Mug, I am SILENTLY Correcting Your Grammar, Funny Saying & Quote Mug, Funny Mug Travel Mug, Silver 14-Ounce Material: stainless steel It has a large handle that's easy to hold and comes in 14 oz sizes. Doubl-wall Vacuum-insulated stainless keeps beverages maximum hot for 3 hours or cold for 6 hours Plastic cover with drink opening, insulating plastic handle works for right or left handers A non-skid base prevents tipping and a tight fitting lid prevents big spills