Brace trailer loads to avoid shipment damage with these Air-Lock Inflatable Dunnage Bags. Robust polymer material provides safe, firm cushioning up to 18"W between skids. Proprietary self-sealing valve chamber permits quick entry and inflation—bags inflate in less than 30 seconds. Will not absorb moisture or odors and adheres securely to pallets’ stretch film to prevent slipping. See-through polymer air bags are less expensive than paper. Sold in cases of 25.