Children's waterproof lunch box $ 15.64 Material: food-grade PP material + austenitic stainless steel + silicone (sealing) + foaming (heat preservation function) Model: single / double / three layers Size: 12x12x11.5cm / 12x12x17.5cm / 12x12x23.5cm Capacity: 680mL / 1000mL / 1320mL Insulation duration: 2-3 hours Uses: daily use, gifts, awards, sales
