SUITABLE: For 3-6th grade elementary students. Backpack Size:30*18*46cm/11.8*7.1*18.1inches. Lunch bag: 22*16*15cm/8.7*6.3*5.9inches. Pencil Bag: 21cm/8.3inches. Weight: 0.7KG/1.5lbs. DURABLE MATERIAL: Elehealthy school bookbag is wear-proof and water-resistant with high-density nylon fabric, durable and smooth two-way zippers, exquisite stitching and triangle sewing reinforcement. COMFORT & STEADY: With widen and thicken shoulder straps, kids' backpack will protect the cervical spine of elementary students.The reasonable…