This stainless steel 20 oz. skinny tumbler has been hand glittered and sealed with multiple layers of water based non-toxic Brite Tone for a hard glossy and smooth finish. Use with care when tumbler arrives until the full 30 day cure time. Personalization with name or monogram can be added with an additional 2-3 weeks for shipment.   Tumbler Care: - hand wash only - do no soak - not dishwasher or microwave safe - avoid extreme temperatures and dropping