Shape:Round Feature:Thermal Insulation,Leakproof,Eco-Friendly Capacity:700ml / Layer Suitable Occasion:School,Picnic,Camping,Office,Kitchen And Home Feature: 1.Gradient Color. Give you shine at the moment. 2.Stainless steel and the PP material.Healthy and safety.Easy to clean 3.According to your like can split and combination the layers. Attention: 1.It can't be used in microwave and dishwasher. 2.The top layer is Leakproof.Other layer is not sealed. (When you store hot water or hot soup.Please cover the lid and lock up,wait 2-3 minutes. Wait for the steam in the container to disappear.) Details: Brand Name:WORTHBUY Material:Stainless Steel,PP Color:Pink,Blue,Khaki,Green Size:1 Layer:16.5 x 8.5cm 2 Layers:16.5 x 14.5cm 3 Layers:16.5 x 20.5cm 4 Layers:16.5 x 26.5cm Holding Time:About 2-3 Hours This time is based on Chinese temperature(about 25 degree).Holding time according to different countries and regions have certain difference.