The design of the large cylindrical shell bag is more eye-catching in terms of capacity and shape.The circular zipper design prevents items from falling.The cylindrical design increases the capacity of the backpack and can accommodate more shells and toys;The cylindrical design makes the baby the most eye-catching boy on the beach.4-color macaron color system is more suitable for seaside style, light blue, light green, light purple, light pink, the color is fresh and bright, it is liked by boys and girls, multi-color can be chose, every boys and girls can pick a satisfying color.The adjustable shoulder strap design can be adjusted according to the height of boys and girls to prevent too long shoulder straps from being worn firmly by their different ages.