20 x HEAVY DUTY rolls of polythene layflat tubing, each roll being 20" Wide x 168 metres in length, 500 gauge in thickness. The weight of each roll is 20kg. All the polythene layflat tubing we stock is UK manufactured to the highest quality standards.Polythene layflat tubing, also known as plastic clear tubing, is a transparent polythene tubing used for protecting/collating/wrapping various objects. Lay-Flat tubing is made of high quality polymers and offers strength, lubricity, chemical inertness, and biocompatibility. Usually sealed with a heat sealer or stapler (not included in purchase).