Features: Introducing the no drill door stoppers with collision proof technology, featuring zincs alloys construction and strong adhesive for instants installation without damaging wall or door. Advanced buffer mechanism absorbs impact forces to minimize noise and prevent surfaces scratches, compatibility with wood, glass, and metal surfaces. Ideal for renters, parent with active kids, and office managers puruses damage without door control solution in high traffics areas. Secures door in bedrooms, bathrooms, glass paneled offices, and retail space where quiet closures and wall protecting is priorities. This anti collision door buffer combines industrial grades performances with minimalist design, blending seamlessly into modern homes and commercial environment. Specifications: Color:Two Elections Dimension:4.5×2.6cm/1.77×1.02in Component:Zincs Alloys Package Includes: 1pc Door Stoppers 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.