1100 BAGS = 50 Rolls (22 bags per roll); UNIVERSAL FIT: Fits BlueDot Tradings Flashlight Dog Waste Bag Dispenser and most other dog clean-up bag dispensers; BAGS: Dog pick-up bags are 12 inches long by 10-1/2 inches wide, and 007mm thick; SMOOTH: Plastic Core for Smooth Dispensing of Bags