Compact automatic door closer, size 17X3.5 CM, color Black Package List: 1 x door closer What this product does Ensures doors close reliably every time to prevent doors from being left open unintentionally. Reduces noise when opening and closing for a quieter environment. Provides adjustable closing force and direction to suit different door types and mounting positions. Key features Material: Cast aluminum self closing door hinge for durable, wear resistant performance. Double spring design: Two springs deliver balanced, strong closing force for consistent operation. Adjustable: Multiple sections for fine tuning closing strength according to door weight and swing direction. Universal mounting: Can be installed on left or right doors by rotating the closer 180 degrees. Compatibility: Suitable for wooden doors, metal doors, commercial doors, fire doors, and glass doors. Recommended for door weights between 20 and 60 kg. Quiet operation: Designed to minimize noise during closing and opening. Finish: Black automatic spring door closer that blends with common door styles. Practical benefits Security and convenience: Keeps bedroom, office, and hotel room doors closed without manual effort. Protection and safety: Helps maintain fire doors and commercial doors in closed position when required. Versatile installation: Works on interior and exterior doors such as bathroom doors, balcony doors, and entry doors. Typical use scenarios Home bedroom door: Install on a wooden bedroom door to ensure it closes softly and reliably. Office glass or metal door: Use on office doors to maintain privacy and reduce corridor noise. Apartment balcony or bathroom door: Fit the closer to keep doors shut against drafts and for safer daily use. Installation and maintenance Easy to install with basic tools. Mounting position and closing force are adjustable to match door size and swing. Robust cast aluminum construction for long service life with minimal maintenance. Specifications Size: 17X3.5 CM Color: Black Material: Cast aluminum Recommended door weight: 20 60 kg Package contents: 1 x door closer This door closer provides reliable, adjustable self closing for a wide range of doors while maintaining quiet operation and durable construction.