Set of 22 lightweight foam blocks in nature-inspired tones are perfect for colossal constructions. 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. BIG BLOCKS FOR BIG BUILDING: Chunky oversized blocks let kids build as big as they can imagine! Set of 22 blocks are all 2-1/2 inches high x 3-1/2 inches wide and come in three lengths; 3-3/4, 7-1/2, and 11 inches L. LIGHTWEIGHT KNOBBED DESIGN: Blocks are made of lightweight EVA foam that's easy to carry, easy to stack - even the littlest builders can carry an armload! Blocks are designed with "knob and well" feature so blocks interlock for super secure structures that stand up to busy builders. NATURE-INSPIRED COLORS: ubtle green, burnt orange, and warm brown give a unique organic look to construction projects. POWERFUL LEARNING TOOLS: Stacking and arranging blocks stimulates motor development and spatial reasoning. The Jumbo Interlocking Blocks Set fosters collaborative thinking and creativity too - everyone will want to build big! CONVENIENT STORAGE BAG: Sturdy vinyl storage bag keeps all the Jumbo Interlocking Blocks conveniently at hand for your next colossal construction. Ages 3 and up.