Stackable and separable design with lids for easy organization and space saving storage Rugged and portable construction: made from durable plastic, these building block boxes stand up to rough play. A built in handle makes them easy to carry from room to room or on trips Large interior capacity: ample space inside to hold a large number of building blocks or other toys, helping keep the play area neat and clutter Multifunctional lid: the innovative building plate lids double as a base for constructing structures, encouraging creativity and practical play Two to three practical use scenarios Home organization and play: use the boxes to sort different types or colors of building blocks; when playtime ends, stack or separate as needed and use the lid as a base for quick, on the spot construction Travel and outings: take blocks to a friend's house or on family trips with the carry handle; the sturdy box keeps small pieces contained and organized during transit Classroom or daycare storage: keep blocks and small toys organized by age or project; the lid can serve as a shared building base for group activities and collaborative projects