Bedford Gel Grading: Heavy Contract Fibre Content: 100% Polypropylene Fibre Weight: 900 gsm Total Weight: 1500 gsm Backing: Rot Proof Water Resistant Gel Pile Height: 3.5mm Total Height: 7.5mm Flammability: Hot Metal Nut Test BS 4790. Low Radius of Ignition Width: 4.00m Roll Length: 30.00m