The price of Tubing is the same for each thickness. The length of the roll changes however. For example a thicker roll will have a shorter overall length.Use a Heat sealer to create your own custom bag length!!$30 Minimum Order.Select a size below :* 1.5 mil Standard thickness (suitable for light to medium-weight packaging needs)* 2 mil Medium thickness (suitable for packaging books, magazines, cloth, etc.)* 4 mil Heavy (tough enough for gravel, nuts, bolts, screws and metal or wood items)* 6 mil Extra-Heavy (These extra-strength bags can really take it! Test them with your tougher storing and packaging jobs. Excellent for wood chips, marbles, ice, hardware, toys, and auto parts.)