Young construction workers and architects will spend hours with these lightweight yet durable cardboard building blocks. This 40-piece set features three sizes of constructive imaginative play. Made of premium extra-thick cardboard for strength they are easy to assemble and feature a wipe-clean surface. The red blocks hold up to 150 pounds!Our building blocks are lightweight and easy for children to stack. Theywith bright and colorful graphics that spark creativity. The Melissa & Doug giant blocks include a step-by-step instruction set for easy fold-together assembly. They also feature a wipe-clean surface for simple clean-up. The Melissa & Doug Deluxe Jumbo Cardboard Blocks are a great gift for kids ages 2 to 5. Add the Melissa & Doug Standard Unit Blocks to round out the pretend play experience and give kids an engaging option for screen-free fun. This product ships in its own special e-commerce packaging intended to reduce waste.For more than 30 years Melissa & Doug has created beautifully designed ima