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 Box Material: Silicone,PP,304 Stainless Steel Feature: Microwaveable, Leakproof, Large Capacity Size 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