Each stone is unique in size - generally they will be .5''-1.5''
These can glow for 8 hours or more when fully charged.
These charge the fastest under black, UV or LED light, but will still charge under regular light bulbs
Water, acid and alkali resistant - Salt Water tanks are fine
Completely Safe & Non-Toxic

Technical Details

Product Details

Product Dimensions

Package Dimensions
Width : 3.6 inch
Height : 0.8 inch
Length : 5.4 inch

Item Weight: 0 ounce (View shipping rates and policies)
Shipping Weight: 5.6 ounce (View shipping rates and policies)

ASIN : B00ZDEN5UK