Kaytee Run-About Exercise Ball 11.5" CatBFBrand_Catit Gray Coast Calcite is an

Gray Coast Calcite is an all natural calcite substrate for all types of marine

Compatible with nearly all Eheim canister filters

Includes a 2 story home with 2 access doors

What you won’t find in our Sunburst® are artificial flavors

Not recommended for strong chewers

Kaytee Run-About Exercise Ball 11.5" CatBFBrand_Catit Gray Coast Calcite is anOnline Only Item The Giant Run about ball measures 11. 5 inch in diameter. Now provide small pets with the freedom to exercise. Your pets can now enjoy the world around them inside these clear exercise balls. Encourages healthy exercise in a Secure and safe way Makes a great temporary holding area to keep your furry friend while you clean their home 11. 5" diameter Recommended size for syrian hamsters, rats, gerbils, smaller hedgehogs and smaller