Creatieve puzzelbeker voor kinderen, cartoon Wisdom waterbeker van voedingskwaliteit, draaibare beker voor wiskunde, waterfles voor basisschool en kleuterschool

Product Name: Children's Water Bottle Material: PP/stainless steel Specifications: PP material -520ml, 316 stainless steel material -430ml, 304 stainless steel material -430ml  Function: ⭐️1. The silicone protective cover on the outside of the water bottle not only protects the bottle body, but also satisfies children's interest in learning with interesting mathematical formulas and cartoon puzzles. Children can calculate mathematical answers by moving the silicone cover and find the joy of drinking water; ⭐️2. The water bottle is made of food grade materials, with PP and stainless steel inner liners to meet the different needs of children; ⭐️3. The stainless steel inner liner has cold and heat insulation functions, with a heat insulation time of about 10 hours and a cold insulation time of about 12 hours; ⭐️4. The straw is designed to be leak proof and has a built-in sealing ring. Even if the drum is inverted, there will be no water leakage; ⭐️5. Easy to carry, the lifting rope can be placed on the shoulder or hung on the body with a sling; ⭐️6. Cute and playful, with a variety of styles to choose from, allowing children to enjoy the pleasure of drinking water;