8-12 mm Sky Blue Glow in the Dark Gravel
Made using advanced ceramic technology and Glow powder.
Sizes are approximate, as gravel does vary in size. Measured from the longest length.
Glows up to 8 hours when fully charged. To charge, simply expose to light.
Colour Whitish by day, glows sky blue colour.
Warning: Not for use by under 3 year olds, choking hazard and may have sharp edges.