Vacuum bagging materials are generally a throw away item used in both resin infusion and regular vacuum bagging. The costs are usually fairly low, however it can be time consuming for us to package small quantity's, as well as the packaging materials required can at times be worth more than the product itself! To combat this, there is bulk discounts built into the price of the products. So the more you buy, the price per m will be reduced substantially in some cases. As a tip, usually 3m long materials can be purchased for not much more than a 1m length.