Blockchain is the future, and you can own the future today! This premium quality blockchain is highly secure and energy efficient.

This 1:12 scale mini cinder block (made using real cement) comes with two military spec stainless steel chains measuring 24 inches and 3.8 inches, so it can be used as both a necklace and a keychain.

Due to the handmade nature of these products, each cinder block is unique and there may be slight variations.