Based on this product's specifications, here are some alternatives and similar models
Magnetic V-Block INSIZE Pryzma PPSM 45 (model 6890-702)
Summary description:
Magnetic V-block INSIZE Pryzma PPSM 45 (6890-702) is a precision work-holding tool for securing round or cylindrical parts during inspection, marking, grinding and machining. The device uses an integrated magnetic base to hold workpieces in the V-groove, providing stable positioning for measuring or processing tasks. Suitable for workshop and metrology applications requiring repeatable alignment of shafts, rods and pins.