Guidecraft Guidecraft Jr. Hollow Blocks - Set of 16: STEM Learning & Educational Game for Children; Wooden Building Toy

Over-sized open-ended hollow building blocks for ages 3+ Set includes 16 pieces Use them on their own or enhance block play by combining with sets of unit blocks Material: Birch plywood and solids, sealed and finished with a UV coating Educational Focus: Spatial reasoning, problem solving, mathematical skills and collaborative negotiation