JEOL’s 2-mm Magic Angle Spinning (MAS) NMR Probe for Solids is suitable for both materials and biosolids NMR. The increased sensitivity of the probe allows for direct detection of 13C or 15N, which is not practical with smaller-diameter rotors. In addition, the larger RF fields and higher spinning speeds produced by the probe are well-suited for materials science NMR investigations of quadrupolar and other nuclei, for example, 19F. Quadrupolar nuclei NMR studies benefit from the larger RF fields by improving excitation range resulting in improved sensitivity. The higher spinning speeds help to remove ambiguities caused by the potential overlap of spinning sidebands with NMR peaks of interest.