Features: Experience door operations with our Pneumatics Door Closers, featuring adjustable closing speed for the shut. This aluminum door closers is designs with a snap plate hold open features, allowing you to set your door at a desired for convenience and efficiency. For homeowners, office managers, and hotel maintenance staff who prioritize noise reductions and door protective in area. Perfectly suited for various setting including residential homes, commercial offices, and hospitality environment, ensuring door close gently and quietly. Enhances the functionality of your space with our easy to installion Pneumatics door closers, with all necessary hardware for a quick setups, providing long reliability. Specifications: Component: Aluminum, Plastic Type: As Picture Show, Four Type to Choose Size: 20.30x4.2cm/7.99x1.65inch Package Includes: 1pc Door Closers note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you will not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.