Magnetic filtering & separation | Goudsmit Magnetics
Clasp, magnetic, gunmetal-plated brass, 18x7mm locking round tube with glue-in ends, 5mm inside diameter. Sold per pkg of 2. - Fire Mountain Gems and Beads
CleanMag Magnetic Rack | Paragon Genomics
6mm x 5mm Magnetic Tube/Cylinder Clasps Hematite Color - 12 sets | Amazing Strength
3 Steps To Get Your Individual Magnetic Tubes - Magnets By HSMAG