Ideal for true chameleons or any tortoise, snake, lizard, arachnid or insect that comes from an arid or semi arid environment * Made of aragonite, the most soluble form of calcium carbonate * Features 100 percent edible and easily digestible and naturally spherical grains that will not scratch valuable animals inside or out * Contains strontium and magnesium while being free of silica and phosphates * Available in Smokey sands color; weighs 20-pounds; includes 2-piece per pack