Brik-A-Blok Set Of 46 Red And Blue Panels Innovative construction toy that stimulates childrens imaginations as they build forts, playhouses and other structures Large 15 1/2" x 15 1/2" polymer panels can be put together in a snap and provide a springboard for physical and cognitive development Entire set fits into a compact storage bag and includes an easy to follow instruction manual Encourages action and interaction, develops problem solving skills Can be used year, in the yard, at the park or indoors, patented and safety tested