Available in both 15mm and 32mm vulcanized composition rubber interlocking tiles, Modzilla ShockPad provides the ultimate amount of shock absorption. Modzilla ShockPad interlocking tiles do not need to be adhered to the substrate, allowing you to create a floating floor system that is easy to install. These interlocking tiles are designed to be used as a field united ShockPad with Performance Beast and Performance Beast Plus and are not designed to be a finished floor.