Pull one of these Heritage 45-gallon blue trash bags off the 100-bag roll to securely line garbage containers. Collect and dispose of waste by bundling it into the sturdy, low-density material of these trash liners. The size of these bags is useful for several sizes of bins, ranging from 40 to 45-gallons. The flexible material easily forms into a knot when users want to secure things inside these Heritage trash bag liners. Liner Trash Bag. 1.3 mil. thickness.