Adjustable Door Bottom Seal Strip — Foam Weather Strip (Black) Keep cold air and drafts where they belong. This adjustable door bottom seal strip is a foam weatherstrip designed to fit under a door and block oneside gaps. Its simple, focused design provides an effective barrier against drafts and helps maintain indoor comfort. Key benefits Stops drafts and reduces cold seepage by sealing the gap under the door. Adjustable design adapts to variable gap sizes so it can address uneven or changing thresholds. Oneside gap blocker — targets the specific gap between door and floor without affecting door operation. Foam construction provides flexible sealing that conforms to the floor for consistent contact. Black finish blends with many door styles for a discreet look. Main features and attributes Functionality: Door bottom seal strip / weatherstrip for underdoor draft stopping and anticold protection. Compatibility: Intended for use where a singleside gap under a door needs sealing; suitable for standard interior and exterior doors with an underdoor gap. Material: Foam weather strip for flexible, compressible sealing. Adjustability: Designed to be adjusted to match the gap height for an improved seal. Color: Black. How it solves the problem By creating a continuous seal at the bottom edge of the door, the strip prevents cold air from entering and warm air from escaping, reducing drafts and making indoor spaces more comfortable. The foam material compresses to fill irregularities in the floor or threshold, improving performance compared with rigid strips. The adjustable aspect allows the same product to be used across different doors and gap conditions. Use cases Winter entry: Install under an exterior door to reduce cold air entering hallways and living spaces during cold months. Apartment or bedroom: Seal the gap under a bedroom or apartment door to reduce draft disturbances and maintain a stable room temperature. Office or utility room: Block underdoor gaps in small office spaces or utility rooms to limit airflow between zones. What to expect A black foam weather strip designed specifically for underdoor draft stopping and anticold performance. An adjustable, oneside gap blocker intended to improve comfort by sealing the bottom of the door. Includes all features described in the product title: Adjustable Door Bottom Seal Strip, Weatherstrip Under Door, Draft Stopper, AntiCold, One Side Gap Blocker, Foam Weather Strip — Black.