These trash bags come on a coreless roll for easy dispensing. Made of gray Linear Low Density Polyethylene, they have a 20 to 30 gallon capacity and a 35 lb. maximum load. Bag dimensions are 36" x 30" x 0.50 mil gauge with a star seal bottom. There are 25 liners/roll, 10 rolls/case, with a total case size of 250 liners.