Estes Gravel Products SES61205 5-Pack RepTerra Reptile Calcium Carbonate Sand, 5-Pound, Purple Renteria Sand Is A Perfect Sand For Reptiles And Hermit Crabs Made Of Calcium Carbonate That Provides A Necessary Source Of Calcium Features natural vegetable based colorfast food grade dyes and coating Available In Purple Color This Product Weighs 5-Pounds; Includes 5-Pieces Per Pack