This Kindergarten Block Play - 24 Shapes, 183 Pcs. is a great addition to any early learning classroom setting! Sets consist of multiples of basic unit and have smoothly sanded edges and corners. Kindergarten Set has 24 Shapes and 183 Pieces. Weight 79 lbs.~NOTE: THIS PRODUCT MAY QUALIFY FOR LEED CREDIT. FEATURING GREEN GUARD CERTIFIED TUFF-GLOSS FINISH AND FORMALDEHYDE FREE BIRCH PLYWOOD MADE IN THE U.S.A TO COMPLY WITH THE U.S GREEN BUILDING COUNCIL'S LEED STANDARDS, IT IS ECO-FRIENDLY AND OFFERS A LIFETIME WARRANTY. IF YOU NEED MORE INFORMATION REGARDING LEED CREDITS OR ENVIRONMENTALLY SAFE EDUCATION PRODUCTS, PLEASE PHONE US.