The double wall stainless steel tumbler keeps drinks cold for up to 24 hours and warm for up to 8 hours The slim design makes it fit easily in both your hand and cup holder. Each tumbler comes complete with a leak proof lid and a straw. Each one is packed in a bubble bag plus an individual white box for easy gift giving.
I 2nd That
The tumblers are a Double wall Vacuum Insulated Stainless Steel Tumbler Cup. The lids are eco-friendlyBPA free. The Bluetooth Tumbler has a screw on/off waterproof wireless speaker on the bottom that comes with a USB cable for easy recharging. Hand wash only. Do not microwave.