1000g super pull. The high-quality 1.2m steel wire rope has passed multiple tensile and elasticity tests. It provides strong pulling force and is resistant to breaking, helping ensure doors close properly for added peace of mind. High quality material: Our automatic door closers are made with a durable ABS plastic housing that resists oxidation, corrosion, abrasion, weather, rain, and high temperatures, ensuring long service life. Suitable for most door types: These automatic door closers work with various doors, including those requiring stronger closing force, left or right opening doors, wooden and metal doors, residential and commercial doors, interior and exterior doors, and fire-rated doors. Quick installation: The no-drill automatic sensor door closer uses a strong adhesive tape for mounting (allow 24 hours for full adhesion before use), providing secure attachment without damaging walls. Wide range of applications: This multi-functional automatic door closer is ideal for homes, small offices, hotels, dormitories, classrooms, businesses, sheds, and home offices. Helps prevent issues caused by accidentally leaving doors open. Automatically closes doors to help keep out insects and rodents, and helps maintain indoor climate by preventing air loss, which may improve energy efficiency. Material: Plastic, stainless steel wire. Tensile force: 1000g. Dimensions: 6.3 x 6.3 x 1.6 cm / 2.48 x 2.48 x 0.63 inch. Steel wire length: 100 cm / 39.3 inch. Package includes: 2 x black automatic door closers; 2 x white automatic door closers.