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Excellerations Jumbo Interlocking Blocks$164.99
Chunky oversized blocks are all 2.5 inches high x 3.5 inches wide and come in three handy lengths for big building; 3-3/4, 7-3/4, and 11 inches L. Blocks are lightweight EVA foam with interlocking knobs and wells, so structures stand up to busy builders. Convenient vinyl storage bag.