Hartz Absorbent Cage Liners for Birds & Small Animals Safe, efficient and sanitary method to keep your small pets cage clean Super absorbent polymers embedded within the layers of the liner allow the upper layer to remain dry to the touch while containing liquid messes Reduces odors associated with pet waste Includes 7, 16"x28" liners that can be cut to fit any size cage Leak-proof design ensures easy clean-up