Kaytee Walnut Litter consists of natural crushed walnut shells, It does not stick or cling to cage allowing for easy clean up, Recommended to be used as a non-contact bedding, Use only in cages with grate separating litter from birds, Due to possible health concerns from potential bird ingestion, Walnut Litter should not come in direct contact with birds, 7lb 6cs, SKU: RYLHC2722