Take outdoor building to new heights—with our jumbo all-weather blocks! Children simply stack and balance the shapes to build a variety of giant creations, boosting gross motor skills as they go. Our inviting heavy-duty blocks stand up to years of outdoor use…and come in 4 different shapes to encourage creativity. You get 20 composite wood blocks featuring handy plastic edges for extra durability. Rectangular prisms measure 5 1/2" x 11".