17 oz Bamboo Stainless Steel Tumbler Gift Set. Best-selling product gift box set to fit your budget. Ideal for: customer appreciation, employee recognition, company meetings, corporate milestones & anniversaries. Box is made with eco-friendly recyclable cardboard. Box offers multi-location imprint capability & full-color option. Stainless Steel Outer & Inner walls. Copper-lined. Double-wall vacuum insulated. Keeps your drinks hot or cold for hours (can keep cold more than 18 hours and keep hot more than 8 hours).Bamboo – Naturally heat and bacteria resistant. Bamboo – Eco friendly – 100% renewable resource. Spill-resistant slide lid w/ rubber gasket. BPA-Free Sweat-resistant. Ships assembled. Hand wash recommended.