The 3M Command Picture Hanging Strips are designed for easy and damage-free application. They securely hold frames, mirrors, and artwork, with the capacity to support weights of up to 5.4kg for medium and 7.2kg for large strips. These versatile strips are a great choice for hassle-free decorating, and their simple removal makes them easy to reuse. They come in two sizes: large, which measures 9cm high and 1.5cm wide, and medium, which measures 7cm high and 1.5cm wide. Each pack contains 4 sets of medium and 8 sets of large strips.