AmazonBasics Dog Waste Bags with Dispenser and Leash Clip, Standard and EPI Additive (meets ASTM D6954-04 Tier 1) 300 black dog-waste bags and dispenser with leash clip Measures approximately 13x9 inches (LxW) Leak-proof bags for safe, sanitary handling; arrows point to the bag opening for quick access 15 bags per roll (20 total rolls); the bags are thicker than standard 20 bag per roll designs Rolls fit standard-size leash dispensers and quickly pull out