Challenge yourself with this fantastic block-building game from Learning Resources, an awesome option for game lovers of all ages. 20-piece set features 4 different shapes & 3 different attributes. Game includes 20 Activity Cards & Activity Guide. Stack, pattern and match the multicolor shapes, but don’t be fooled by these endlessly enjoyable blocks mean brain-boosting business. ANALYTICAL & CRITICAL THINKING SKILLS: Mental Blox help children practice following verbal instructions, asking questions and build critical thinking skills. Activity cards provide children with examples of what to build. •40 PIECE SET: This logic game includes 20 chunky plastic blocks, 20 activity cards, an activity guide and features four different shapes and three different attributes for a real challenge. 11.1''H x 8.4''W x 2.1''D. 1.425 lbs. Blocks: 2'' x 2''. Age: 5 years & up. Imported. MODEL NUMBER: LER9280. Size: One Size. Gender: unisex. Age Group: kids. Material: NONE.