This product is a 7 lbs bulk lot of random LEGO pieces, consisting mostly of black and grey bricks. It includes various LEGO sets and themes. The pieces are made of plastic and are suitable for ages 6 and up. This lot is ideal for those interested in building and creating their own LEGO designs, with a focus on bulk LEGO pieces and creative construction. Each pound of bricks comes washed and sanitized, making it a clean and ready-to-play option for LEGO enthusiasts.