The 20x Envirograf Intumescent Fire Strip Cavity Barrier CV30/6 is a high-quality product manufactured in the United Kingdom by the brand Envirograf. This self-adhesive barrier is designed to protect cavities in walls and prevent the spread of fire, providing a critical safety feature for buildings. With a unit quantity of 1 and a compact size of 6x30mm, this product. offers a reliable solution for enhancing fire safety in various settings. please contact me if additional lengths required.