MAG-MATE, 50 lb Max. Lifting Capacity, 6 1/8 in Magnet Lg, Magnetic Sheet Handler - 2RVA3|B100 - Grainger
PlateMate Magnetic Add On Weight Plate | Fractional Weight Plates - 2.5 lb Brick 854130006407 | eBay
PlateMate Magnetic Add On Weight Plate | Fractional Plates - 1.25 lb Donut 854130006193 | eBay
1.25 Lb Donut PlateMate Magnetic Microplates (Pair)Microloading with PlateMate® is the safe, scientific way to build strength at beginning, intermediate and advanced exercise levels. Microloading with PlateMates is essential at all levels.