Hartz® Absorbent Cage Liners For Birds & Small Animals. Locks in odor & moisture. No mess, cleaner than paper. Contains: 7 liners (16 x 28"). Hartz® Absorbent Cage Liners For Birds and Small Animals are a safe, efficient and sanitary way to keep your small pet's cage clean. Super absorbent polymers are embedded within the layers of the liner, which allows the upper layer to remain dry to the touch while containing liquid messes and reducing odors associated with pet waste. Hartz absorbent cage liners for birds and small animals can be cut to fit any size cage and their leak proof design ensures easy clean-up. Hartz and other trademarks are trademarks of The Hartz Mountain Corporation. Visit our website www.hartz.com.