Shepherd, B.J.A. JACoW Publishing Geneva, Switzerland 2673-5490 978-3-95450-213-4 10.18429/JACoW-IPAC2020-MOVIRO05 English 1-5 dipole quadrupole permanent-magnet radiation SRF Contribution to a conference proceedings 2020 2020-06 https://doi.org/10.18429/JACoW-IPAC2020-MOVIRO05 https://jacow.org/ipac2020/papers/moviro05.pdf Several groups internationally have been designing and building adjustable permanent magnet based quad-rupoles for light sources, colliders, and plasma accelera-tors because of their very high gradients and zero power consumption. There are now examples of widely adjusta-ble PM dipoles too. The ZEPTO project, based at STFC Daresbury Laboratory, developed several highly adjusta-ble PM-based dipole and quadrupole prototypes for CLIC, and is now building a quadrupole to be installed in Diamond to gain experience ahead of the Diamond-2 upgrade. This is a review and comparison of the recent designs globally with comments on the future prospects.