Gefu Nevio is a premium double-walled stainless steel thermal mug designed for on-the-go use. It features a 400ml capacity, a 360-degree all-around drinking lid, and a push-button closure that is 100% leak-proof. It keeps drinks hot for up to 4 hours or cold for 8 hours.Key features include:360° Sipping: Drink comfortably from any angle without needing to find a specific opening.Easy Cleaning: The cap easily dismantles, and the entire unit is dishwasher safe.Eco-Friendly: A reusable, durable alternative to disposable single-use coffee cups.