With the smooth surface of this polished design, this lunch box is easy to clean.Since this lunch box uses a safe, healthy and hygienic stainless-steel liner, it is not easy to break and is very durable.It is made of high quality 304 stainless steel material.There are 4 different sizes for you to choose.This product is suitable for school, office, outdoor, etc.Item Name: Lunch BoxMaterial: Silicone,PP,304 Stainless SteelFeature: Microwaveable, Leakproof, Large CapacitySize Details: Size 250ML: 11.6cm x 9.4cm x 4.6cm/4.57" x 3.7" x 1.81" (Approx.)Size 450ML: 11.6cm x 9.4cm x 7cm/4.57" x 3.7" x 2.76" (Approx.)Size 600ML: 19.5cm x 11.6cm x 4.6cm/7.68" x 4.57" x 1.81" (Approx.)Size 1000ML: 19.5cm x 11.6cm x 7cm/7.68" x 4.57" x 2.76" (Approx.)Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Lunch Box