Keeping your kids' rooms reasonably tidy doesn't have to be a hassle anymore. The LEGO Storage Brick system makes it easy and fun for the kids to tidy up. The oversized LEGO bricks are designed to stack, just like the original LEGO bricks. Use them to decorate, play, build and have fun or keep your toys sorted using them as storage boxes. The LEGO Storage Bricks come in a range of colors that appeal to both boys, girls and adults. Safety: Fulfill the requirements within market specific toy safety regulations. No PVC used. BPA free.?