Yellow Neon Pony Beads UV Active Beads Matte Yellow Beads Czech Glass Pony Beads Yellow Roller Beads Neon Glass Crow Beads 6mm x 4mm 20pc Color: Yellow Neon Beads / UV Active Beads Size (mm): 6mm x 4mm, 2mm holes Shape: Round / Pony Beads / Glass Pony Beads / Roller Beads / Glass Crow Sold in packs of 20pc. These beads are changing the color in UV light!