For sale are x20 lengths at 1.050 meters of Grey flat fire intumescent strip. The width is 15mm, the thickness is 4mm and the length is 1050mm. Made in England and the manufacturer is Lorient. I have got a lot of this for sale so if you need more or less please ask. I also have different widths and Acoustic fire strip for sale. There is a peel of strip on the back with a sticky strip to hold in place. Located in Filton Bristol. Please feel free to ask any questions. The intumescent strip is:Certified approved CF341 (TS35) BBA approved 92/2841IFC approved FRPP454Made in the U.K.all the above is stamped on the site of the intumescent strip The picture shows 10mm but the sale is 15mm