Set of 100. Thick and heavy duty 6 mil. gauge. Ideal for big construction vacuuming jobs like concrete, fiberglass, stone and wood saw dust. Fits all pro vacuums with 30 gallon drum. Warranty: 90 days. Clear color. Made in USA. No assembly required. 30 in. L x 0.01 in. W x 30 in. H (0.5 lbs.) Industrial vacuuming is big job and requires durable bag.