Twistshake's innovative container has an opening that is narrower than the bottle's neck, which prevents spillage during refilling. The container comes in 6 different colours. Switch them up and make your bottle your own! FeaturesBPA-free - safe for both you and your baby. PP-plastics - manufactured in premium, high quality polypropylene.2 x 100ml - for your babys needs.A wide opening - for easy measuring and cleaning. Daily needs - put several containers together and satisfy the nutritional needs of your child, super simple! Tips! Fasten your empty container on the bottom to be ready for the next serving. You can also use it for storing fruit, raisins, crackers, porridge etc. Rinse in warm water with detergent, or in the washing machine.