Low-Density Waste Can Liners, 4 gal, 0.35 mil, 17" x 17", Black, Perforated Roll, 50 Bags/Roll, 20 Rolls/Carton Sturdy, star-seal bottom helps prevent leaks and provides even weight distribution. Made from high-quality raw materials, mineral reinforced to enhance strength and puncture-resistance. Use with heavy loads, including sharp or abrasive materials. Coreless rolls.