Utillife Walking Double Drinking Mug is a multi-functional use of water cups, straight mouth and straw combination, to meet the different use of straws and use of scenarios. The cup is sealed, inverted without leakage, and can be carried on the go. The silicone cup ring is both anti-scald and non-slip, dishwasher safe, BPA free, and the material meets food contact grade standards, so safety is guaranteed.