This rock has a diameter of about 1 inch and will glow for 3-4 hours after being exposed to light. It is made of natural resin and is safe for use in both indoor and outdoor environments. The price drops from $29.99 to $22.99 just $20.69 when you clip a 10% coupon on the product page. Shipping is free for Prime members and nonmembers get free shipping over $35.

Clip a 10% coupon on the product page. Price varies on color & size selection.