NanoCubics feature the same classic design advantages, of the legendary Cubic and MiniCubic, reconceived for today's skating, and utilizing the amazing Dragon Formula. The NanoCubic's offset design allows it to have the perfect shape for both inner and outer edges to skate a wider range of obstacles. NanoCubics are smaller, lighter, and offset, so their large outer edge rolls up curbs, walls, and over cracks, and it covers your axle and nuts. The inner edge locks onto rails but releases when you need to. Outer Lip: Protects your nuts! Adds width and stability Makes coconut wheelies possible Climbs over coping, up onto curbs and up walls Inner Lip: Leaves more truck exposed Grabs onto obstacles and locks in on grinds DRAGON FORMULA! The amazing new Dragon Formula (DF) Urethane used to create these wheels is another industry leading innovation from Powell Peralta. 97A Hardness.