Unisex Children Toddler Kid's Polyester Fabric Pupils Preschool School Bag Backpack , police car (11x6.3x16.5inch) (blue) Durable polyester material. Ergonomic design, breathable Waterproof and environment-friendly Adjustable shoulder strap for easy and comfortable carrying Size: 11x6.3x16.5inch Delivery time: 7-15 business days