X-Large (36"x19"), 8 bags per pack. TWIST TIE for easy tie up and disposal, unscented. Sized to fit most litter boxes including boxes with a cover or raised back. Oxo-degradable, made with d2w controlled-life technology, the liner has a much shorter life span than traditional plastics. Tested using ASTM D6954-04 bag breaks down into CO2, H2O, and biomass.