This white dual bladed Intumescent seal stops smoke and cuts out draughts. Designed with a discreet look that blends into the door frame. Simple to install, with a self adhesive strip, it can also be cut to size quickly and easily for convenient fitting.Dual bladed Intumescent fire strips are designed to expand in the event of a fire. Placed around a door frame, the heat from a fire cases them to expand and seal off the gap between the door and the door frame. The dual blade stop draughts, too. For maximum effectiveness they need to be rebated into the door or door frame. Just part of our fire door accessory range, all of our fire door accessories have been tested to the very highest industry standards for your complete peace of mind. These standards vary depending on many factors, therefore all doors must be fitted in accordance with the fire test. This item is delivered direct to you from one of our suppliers, please see our Terms & Conditions for details.