General description The Gray Residential Interior Safety Spring Door Closer is a heavy-duty solution designed for automatic closing of doors. It is suitable for doors weighing up to 69 kg, making it ideal for indoor gardens, outdoor doors, gates, and shed doors. This door closer ensures peace of mind by automatically closing and locking doors, preventing pets from escaping or entering unwanted areas. Technical specifications Weight capacity: up to 69 kg Material: stainless steel Features: antioxidant, anti-corrosion, rust-proof, stable, abrasion-resistant, weather-resistant, quiet Installation Adjust the closer to a quarter turn at a time to avoid over-tensioning. Test the door after each adjustment to ensure proper function. Excessive tension can cause the spring to buckle. If lubrication is needed, disassemble the unit after relieving tension and apply white lithium grease directly to the springs. Usage Can be used on both left and right swing doors. Adjustable closing speed without