UV Fluorescent Microspheres - Yellow in Daylight, Blue-Green in UV Light 0.98g/cc - Particle Sizes 27 to 300 micron (um)
Fluorescent Green Polyethylene Microspheres, Beads, Particles - Density of 1.00g/cc for Flow Visualization and PIV - Diameter 10micron to 1400um (1.4mm)
VMO Fluorescent Beads 5mm (single colour) x 100 - Veals Mail Order
Nacalai USA, Inc. | Product | Fluorescent beads with magnetic or non-magnetic particles
40 Count Fluorescent Beads - Bobber Stops and Fishing Beads – Rod-N-Bobb's Inc.