Today’s Groupon offers 100-Piece Glow-in-the-Dark Set, distributed by Dynergy.
- 100-piece set of man-made pebbles
- After being exposed to daylight, these pebbles glow in the dark
- Glow lasts approximately two to three hours after full sun exposure
- Pebbles are about the size of cooked lima beans
- Material: photo-luminescent pigment and resin
- Pebble: approx. 2.5 cm
- Stone: 14 mm x 11 mm