Watch the beads change colour before your very eyes. Simply expose to sunlight or a UV light and they turn from translucent clear white to a range of super-bright colours. Bulk packed in multicolour packs of approx 500 beads. Ideal for crafts and the making of simple jewellery or great for holidays etc.
Additionally these beads are often used in an educational environment to train children to understand the power of UV in sunlight. There are 7 colours in the mix pack. Small parts - not suitable for very young children. These beads have and internal hole diameter of 3mm.
Size: 8mm in diameter, 6mm in height, 3mm hole in the middle.