Made from High Quality ? Materials for Durability: Ideal for school going Student,home, office and outdoor use,inner body elements are made from stainless steel which makes it extremely durable for daily use. Additionally, as it is easy to clean, maintaining this bottle is an easy task. Smart Design for Easy Portability. The Wide mouth for easy to drink & cleaning. the wide mouth of the bottle fits ice cubes. Stainless steel bottles not only help keep your drink safe, but also keep our planet healthy. Durable, light-weight and leak proof - these are perfect as school water bottles for children,home,office. The bottles are adorned with high definition color designs with an original and a creative perspective. The designs build up on the children's limitless, creative thoughts on what they aspire to be - when they grow up. These bottles are great to use, great to see and great for our planet. For your child's safety, bottles are made of steel material. It is safe choice for your family. Avenger, Barbie, Disney Princess, Frozen, Spiderman, mickey mouse, Mini Mouse. Wash the boxes again with lukewarm water and use a mild soap solution and a sponge to clean it inside out. Avoid using harsh detergent and a scrub for plastic tiffin boxes. They would hardly help in removing the stains.