This brown dual bladed Intumescent seal stops smoke and reduces noise levels. 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 for easy 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 causes them to expand and seal off the gap between the door and the door frame. For maximum effectiveness they need to be rebated into the door or door frame. Part of our fire door accessory range, which ensures that you follow the necessary safety guidelines. All of our fire door accessories have been tested to the very highest industry standards for complete peace of mind. 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.