The Mermaid Mama hot and cold reusable tumbler is an eco friendly cup to provide beverages for you while you are on the go and out of the house. It's a 20 oz double wall 18/8 stainless steel thermal tumbler with copper vacuum insulation and clear push-on swivel lid. For cocktails at concerts, wine on the beach, coffee in the morning, ice cold water in your car, and for children's sippy cups.
Tumbler will keep things hot for 8 hours and cold for 16 hours. Hand wash recommended. Do not microwave